Update gNMI version and build script

Change-Id: I0f2d3c84a7a13111dc5da966b21836338d327929
diff --git a/tools/build/bazel/gnmi_BUILD b/tools/build/bazel/gnmi_BUILD
new file mode 100644
index 0000000..43cb693
--- /dev/null
+++ b/tools/build/bazel/gnmi_BUILD
@@ -0,0 +1,17 @@
+proto_library(
+    name = "gnmi_proto",
+    srcs = ["gnmi/gnmi.proto"],
+    deps = [
+        ":gnmi_ext_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:any_proto",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+
+proto_library(
+    name = "gnmi_ext_proto",
+    srcs = ["gnmi_ext/gnmi_ext.proto"],
+    visibility = ["//visibility:public"],
+)