[go] extra_dependencies --> deps

Bug: BLD-62
Test: builds fine
Change-Id: Icb0db09e9990d289f11a870823ace95c9d33f51a
diff --git a/protoc-gen-go/BUILD.gn b/protoc-gen-go/BUILD.gn
index d8c9a0a..fca7b98 100644
--- a/protoc-gen-go/BUILD.gn
+++ b/protoc-gen-go/BUILD.gn
@@ -9,7 +9,7 @@
 
 go_binary("protoc-gen-go") {
   gopackage = "github.com/golang/protobuf/protoc-gen-go"
-  extra_dependencies = [ "//garnet/public/go/third_party:github.com/golang/protobuf" ]
+  deps = [ "//garnet/public/go/third_party:github.com/golang/protobuf" ]
 }
 
 install_host_tools("host") {