[VOL-4293] OpenONU Adapter update for gRPC migration

Change-Id: I05300d3b95b878f44576a99a05f53f52fdc0cda1
diff --git a/vendor/golang.org/x/sys/unix/syscall_aix_ppc.go b/vendor/golang.org/x/sys/unix/syscall_aix_ppc.go
index b3c8e33..e92a0be 100644
--- a/vendor/golang.org/x/sys/unix/syscall_aix_ppc.go
+++ b/vendor/golang.org/x/sys/unix/syscall_aix_ppc.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix
-// +build ppc
+//go:build aix && ppc
+// +build aix,ppc
 
 package unix