Add androidx/* to cronet jar excluded patterns

Change-Id: I605dabfb91f9d4a3ddb8c039737ba5eb13064248
Bug: b/149755389
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2065341
Auto-Submit: Nick Harper <nharper@chromium.org>
Reviewed-by: Eric Roman <eroman@chromium.org>
Commit-Queue: Nick Harper <nharper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742921}

components/cronet/android/BUILD.gn

@@ -656,6 +656,7 @@ jar_src("jar_cronet_impl_util_java_source") {
 _jar_excluded_patterns = [
   # Excludes Android support libraries crbug.com/832770.
   "android/*",
+  "androidx/*",
   "*/library_loader/*.class",
   "*/multidex/*.class",
   "*/process_launcher/*.class",