Allow module-specific protoc flags.
You can add local protoc flags via LOCAL_PROTOC_FLAGS.
Change-Id: If246a4edafe1edcec6a7f193bde8ce3c83de745b
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 775a1b8..5c4dbea 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -103,6 +103,7 @@
LOCAL_BUILD_HOST_DEX:=
LOCAL_DEX_PREOPT:=
LOCAL_PROTOC_OPTIMIZE_TYPE:= # lite(default),micro,full
+LOCAL_PROTOC_FLAGS:=
# Trim MAKEFILE_LIST so that $(call my-dir) doesn't need to
# iterate over thousands of entries every time.