reformat bazel files to use Google coding standards

Change-Id: I320f0ca7ccb1b2247ccdd9fa58fefca7dad8a16f
diff --git a/protocols/p4runtime/model/BUILD b/protocols/p4runtime/model/BUILD
index 490ea94..39c314e 100644
--- a/protocols/p4runtime/model/BUILD
+++ b/protocols/p4runtime/model/BUILD
@@ -1,4 +1,4 @@
-PROTOBUF_VER = '3_2_0'
+PROTOBUF_VER = "3_2_0"
 
 COMPILE_DEPS = CORE_DEPS + [
     #'//protocols/p4runtime/proto:onos-protocols-p4runtime-proto',