move osgi_feature() and wrapped_osgi_jar() out of the bazel prelude

Change-Id: I0266ab4dbf0d0845ccbd940f2d0d3b230bd55260
diff --git a/protocols/p4runtime/proto/BUILD b/protocols/p4runtime/proto/BUILD
index 2f5e7fd..fe82bb3 100644
--- a/protocols/p4runtime/proto/BUILD
+++ b/protocols/p4runtime/proto/BUILD
@@ -1,3 +1,5 @@
+load("//tools/build/bazel:osgi_java_library.bzl", "wrapped_osgi_jar")
+
 java_proto_library(
     name = "p4_runtime_java_proto",
     visibility = ["//visibility:public"],