VOL-1460 Updated core to use voltha-protos instead of local protos
Moved protos to python directory in order to maintain functionaly of containers built there.
Added capability to do local builds of protos
Added instructions on running dep ensure for getting protos.
Updated github.com/golang/protobuf version to v1.3.1

Change-Id: Ia6ef55f07f0d5dcb5b750d7c37b21b71db85bfc4
diff --git a/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go b/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
index ebaca41..7586a13 100644
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
@@ -174,6 +174,7 @@
 	B9600                                = 0xd
 	BALLOON_KVM_MAGIC                    = 0x13661366
 	BDEVFS_MAGIC                         = 0x62646576
+	BINDERFS_SUPER_MAGIC                 = 0x6c6f6f70
 	BINFMTFS_MAGIC                       = 0x42494e4d
 	BLKBSZGET                            = 0x40081270
 	BLKBSZSET                            = 0x80081271
@@ -486,12 +487,57 @@
 	FALLOC_FL_PUNCH_HOLE                 = 0x2
 	FALLOC_FL_UNSHARE_RANGE              = 0x40
 	FALLOC_FL_ZERO_RANGE                 = 0x10
+	FANOTIFY_METADATA_VERSION            = 0x3
+	FAN_ACCESS                           = 0x1
+	FAN_ACCESS_PERM                      = 0x20000
+	FAN_ALLOW                            = 0x1
+	FAN_ALL_CLASS_BITS                   = 0xc
+	FAN_ALL_EVENTS                       = 0x3b
+	FAN_ALL_INIT_FLAGS                   = 0x3f
+	FAN_ALL_MARK_FLAGS                   = 0xff
+	FAN_ALL_OUTGOING_EVENTS              = 0x3403b
+	FAN_ALL_PERM_EVENTS                  = 0x30000
+	FAN_AUDIT                            = 0x10
+	FAN_CLASS_CONTENT                    = 0x4
+	FAN_CLASS_NOTIF                      = 0x0
+	FAN_CLASS_PRE_CONTENT                = 0x8
+	FAN_CLOEXEC                          = 0x1
+	FAN_CLOSE                            = 0x18
+	FAN_CLOSE_NOWRITE                    = 0x10
+	FAN_CLOSE_WRITE                      = 0x8
+	FAN_DENY                             = 0x2
+	FAN_ENABLE_AUDIT                     = 0x40
+	FAN_EVENT_METADATA_LEN               = 0x18
+	FAN_EVENT_ON_CHILD                   = 0x8000000
+	FAN_MARK_ADD                         = 0x1
+	FAN_MARK_DONT_FOLLOW                 = 0x4
+	FAN_MARK_FILESYSTEM                  = 0x100
+	FAN_MARK_FLUSH                       = 0x80
+	FAN_MARK_IGNORED_MASK                = 0x20
+	FAN_MARK_IGNORED_SURV_MODIFY         = 0x40
+	FAN_MARK_INODE                       = 0x0
+	FAN_MARK_MOUNT                       = 0x10
+	FAN_MARK_ONLYDIR                     = 0x8
+	FAN_MARK_REMOVE                      = 0x2
+	FAN_MODIFY                           = 0x2
+	FAN_NOFD                             = -0x1
+	FAN_NONBLOCK                         = 0x2
+	FAN_ONDIR                            = 0x40000000
+	FAN_OPEN                             = 0x20
+	FAN_OPEN_EXEC                        = 0x1000
+	FAN_OPEN_EXEC_PERM                   = 0x40000
+	FAN_OPEN_PERM                        = 0x10000
+	FAN_Q_OVERFLOW                       = 0x4000
+	FAN_REPORT_TID                       = 0x100
+	FAN_UNLIMITED_MARKS                  = 0x20
+	FAN_UNLIMITED_QUEUE                  = 0x10
 	FD_CLOEXEC                           = 0x1
 	FD_SETSIZE                           = 0x400
 	FF0                                  = 0x0
 	FF1                                  = 0x4000
 	FFDLY                                = 0x4000
 	FLUSHO                               = 0x800000
+	FS_ENCRYPTION_MODE_ADIANTUM          = 0x9
 	FS_ENCRYPTION_MODE_AES_128_CBC       = 0x5
 	FS_ENCRYPTION_MODE_AES_128_CTS       = 0x6
 	FS_ENCRYPTION_MODE_AES_256_CBC       = 0x3
@@ -513,7 +559,7 @@
 	FS_POLICY_FLAGS_PAD_4                = 0x0
 	FS_POLICY_FLAGS_PAD_8                = 0x1
 	FS_POLICY_FLAGS_PAD_MASK             = 0x3
-	FS_POLICY_FLAGS_VALID                = 0x3
+	FS_POLICY_FLAGS_VALID                = 0x7
 	FUTEXFS_SUPER_MAGIC                  = 0xbad1dea
 	F_ADD_SEALS                          = 0x409
 	F_DUPFD                              = 0x0
@@ -1131,7 +1177,7 @@
 	NETLINK_UNUSED                       = 0x1
 	NETLINK_USERSOCK                     = 0x2
 	NETLINK_XFRM                         = 0x6
-	NETNSA_MAX                           = 0x3
+	NETNSA_MAX                           = 0x5
 	NETNSA_NSID_NOT_ASSIGNED             = -0x1
 	NFNETLINK_V0                         = 0x0
 	NFNLGRP_ACCT_QUOTA                   = 0x8
@@ -1398,6 +1444,12 @@
 	PR_MCE_KILL_SET                      = 0x1
 	PR_MPX_DISABLE_MANAGEMENT            = 0x2c
 	PR_MPX_ENABLE_MANAGEMENT             = 0x2b
+	PR_PAC_APDAKEY                       = 0x4
+	PR_PAC_APDBKEY                       = 0x8
+	PR_PAC_APGAKEY                       = 0x10
+	PR_PAC_APIAKEY                       = 0x1
+	PR_PAC_APIBKEY                       = 0x2
+	PR_PAC_RESET_KEYS                    = 0x36
 	PR_SET_CHILD_SUBREAPER               = 0x24
 	PR_SET_DUMPABLE                      = 0x4
 	PR_SET_ENDIAN                        = 0x14
@@ -2294,6 +2346,7 @@
 	TUNGETVNETBE                         = 0x400454df
 	TUNGETVNETHDRSZ                      = 0x400454d7
 	TUNGETVNETLE                         = 0x400454dd
+	TUNSETCARRIER                        = 0x800454e2
 	TUNSETDEBUG                          = 0x800454c9
 	TUNSETFILTEREBPF                     = 0x400454e1
 	TUNSETGROUP                          = 0x800454ce