gn2bp: Update protoc tool name

Test: ./update_results.sh
Change-Id: I7d08e0557327768ec0a293028992fd6156e03583
diff --git a/tools/gn2bp/gen_android_bp b/tools/gn2bp/gen_android_bp
index b31fe82..ce540ab 100755
--- a/tools/gn2bp/gen_android_bp
+++ b/tools/gn2bp/gen_android_bp
@@ -437,7 +437,7 @@
     """
   assert (target.type == 'proto_library')
 
-  protoc_gn_target_name = "//third_party/protobuf:protoc(//build/toolchain/linux:clang_x64)"
+  protoc_gn_target_name = gn.get_target('//third_party/protobuf:protoc').name
   protoc_module_name = label_to_module_name(protoc_gn_target_name)
   tools = {protoc_module_name}
   cpp_out_dir = '$(genDir)/%s/%s/' % (tree_path, target.proto_in_dir)