Suppress checkstyle tests for bazel Yang generated code

Change-Id: I1f61541102e6706526a125ecb234e49debe85aff
diff --git a/tools/build/bazel/yang.bzl b/tools/build/bazel/yang.bzl
index 548e3b2..59a4b99 100644
--- a/tools/build/bazel/yang.bzl
+++ b/tools/build/bazel/yang.bzl
@@ -161,7 +161,8 @@
     osgi_jar(name = name, srcs = srcs,
              resource_jars = [name + "-generate"], deps = deps,
              visibility = ["//visibility:public"],
-             suppress_errorprone = True)
+             suppress_errorprone = True,
+             suppress_checkstyle = True)
 
 def yang_model(
     name = None,