VOL-4217: Update to latest version of protos and voltha-lib-go for
voltha-2.9 release. Tested with BAL3.10

Change-Id: Ibdc5978a1f2df713965a27ce26d0e22c1ffa366a
diff --git a/vendor/github.com/gogo/protobuf/proto/text_parser.go b/vendor/github.com/gogo/protobuf/proto/text_parser.go
index 1ce0be2..f85c0cc 100644
--- a/vendor/github.com/gogo/protobuf/proto/text_parser.go
+++ b/vendor/github.com/gogo/protobuf/proto/text_parser.go
@@ -318,7 +318,7 @@
 		if i > utf8.MaxRune {
 			return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss)
 		}
-		return string(i), s, nil
+		return string(rune(i)), s, nil
 	}
 	return "", "", fmt.Errorf(`unknown escape \%c`, r)
 }