[VOL-1866] Changed module dependency to v12.0.0 of k8s client-go and v1.15.4 of k8s api/apimachinery in sync with other voltha components

Had to use pseudo-version corresponding to v12.0.0 of k8s client-go
because golang proxy is no longer serving the modules not complying
to Semantic Import Versioning rules including client-go v12.0.0.
Refer to https://github.com/kubernetes/client-go/issues/631 and
https://github.com/golang/go/issues/33558

Change-Id: I2e558bab7f0702f230761319eb5392a7d0532ea3
diff --git a/vendor/k8s.io/api/policy/v1beta1/zz_generated.deepcopy.go b/vendor/k8s.io/api/policy/v1beta1/zz_generated.deepcopy.go
index 1a02ae6..75851e1 100644
--- a/vendor/k8s.io/api/policy/v1beta1/zz_generated.deepcopy.go
+++ b/vendor/k8s.io/api/policy/v1beta1/zz_generated.deepcopy.go
@@ -28,6 +28,22 @@
 )
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AllowedCSIDriver) DeepCopyInto(out *AllowedCSIDriver) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AllowedCSIDriver.
+func (in *AllowedCSIDriver) DeepCopy() *AllowedCSIDriver {
+	if in == nil {
+		return nil
+	}
+	out := new(AllowedCSIDriver)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *AllowedFlexVolume) DeepCopyInto(out *AllowedFlexVolume) {
 	*out = *in
 	return
@@ -175,7 +191,7 @@
 func (in *PodDisruptionBudgetList) DeepCopyInto(out *PodDisruptionBudgetList) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
-	out.ListMeta = in.ListMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
 	if in.Items != nil {
 		in, out := &in.Items, &out.Items
 		*out = make([]PodDisruptionBudget, len(*in))
@@ -289,7 +305,7 @@
 func (in *PodSecurityPolicyList) DeepCopyInto(out *PodSecurityPolicyList) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
-	out.ListMeta = in.ListMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
 	if in.Items != nil {
 		in, out := &in.Items, &out.Items
 		*out = make([]PodSecurityPolicy, len(*in))
@@ -375,6 +391,11 @@
 		*out = make([]AllowedFlexVolume, len(*in))
 		copy(*out, *in)
 	}
+	if in.AllowedCSIDrivers != nil {
+		in, out := &in.AllowedCSIDrivers, &out.AllowedCSIDrivers
+		*out = make([]AllowedCSIDriver, len(*in))
+		copy(*out, *in)
+	}
 	if in.AllowedUnsafeSysctls != nil {
 		in, out := &in.AllowedUnsafeSysctls, &out.AllowedUnsafeSysctls
 		*out = make([]string, len(*in))
@@ -390,6 +411,11 @@
 		*out = make([]corev1.ProcMountType, len(*in))
 		copy(*out, *in)
 	}
+	if in.RuntimeClass != nil {
+		in, out := &in.RuntimeClass, &out.RuntimeClass
+		*out = new(RuntimeClassStrategyOptions)
+		(*in).DeepCopyInto(*out)
+	}
 	return
 }
 
@@ -446,6 +472,32 @@
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RuntimeClassStrategyOptions) DeepCopyInto(out *RuntimeClassStrategyOptions) {
+	*out = *in
+	if in.AllowedRuntimeClassNames != nil {
+		in, out := &in.AllowedRuntimeClassNames, &out.AllowedRuntimeClassNames
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	if in.DefaultRuntimeClassName != nil {
+		in, out := &in.DefaultRuntimeClassName, &out.DefaultRuntimeClassName
+		*out = new(string)
+		**out = **in
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RuntimeClassStrategyOptions.
+func (in *RuntimeClassStrategyOptions) DeepCopy() *RuntimeClassStrategyOptions {
+	if in == nil {
+		return nil
+	}
+	out := new(RuntimeClassStrategyOptions)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *SELinuxStrategyOptions) DeepCopyInto(out *SELinuxStrategyOptions) {
 	*out = *in
 	if in.SELinuxOptions != nil {