[meta] Skip objects on (de)serialize acl field data mask (#1273) (#1275)

Mask is special, since it's combined with field data, but there is not field corresponded to object or object list so we can skip, them in serialize and deserialize.

Cherry pick commit from master to v1.8.1 branch. No headers changes, only introduce new metadata features.

meta/serialize.pm

@@ -455,6 +455,22 @@ sub EmitSerializeHeader
     WriteSource "EMIT(\"{\");\n";
 }
 
+sub WriteSkipForMask
+{
+    # mask is special, since it's combined with field data, but there
+    # is not field corresponded to object or object list so we can skip
+    # them in serialize and deserialize
+
+    WriteSource "else if (meta->attrvaluetype == SAI_ATTR_VALUE_TYPE_ACL_FIELD_DATA_OBJECT_ID)";
+    WriteSource "{";
+    WriteSource "/* skip */";
+    WriteSource "}";
+    WriteSource "else if (meta->attrvaluetype == SAI_ATTR_VALUE_TYPE_ACL_FIELD_DATA_OBJECT_LIST)";
+    WriteSource "{";
+    WriteSource "/* skip */";
+    WriteSource "}";
+}
+
 sub EmitSerializeFooter
 {
     my $refStructInfoEx = shift;
@@ -463,6 +479,8 @@ sub EmitSerializeFooter
     {
         my $name = $refStructInfoEx->{name};
 
+        WriteSkipForMask() if $name eq "sai_acl_field_data_mask_t";
+
         # NOTE: if it's union, we must check if we serialized something
         # (not always true for acl mask)
 
@@ -1061,6 +1079,8 @@ sub EmitDeserializeFooter
     {
         my $name = $refStructInfoEx->{name};
 
+        WriteSkipForMask() if $name eq "sai_acl_field_data_mask_t";
+
         # if it's union, we must check if we serialized something
         # (not always true for acl mask)