Upgrade bazel JDK to 11 and support arm64.

Change-Id: I9060bfcbb32a1b7214236e282ad46da34ac0966c
Signed-off-by: Tyler Chatow <tchatow@gmail.com>
diff --git a/.bazelrc b/.bazelrc
index e0fcd81..3a09925 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -101,7 +101,7 @@
 # Note that this doesn't quite work fully, but it should. See
 # https://github.com/bazelbuild/bazel/issues/6341 for ongoing discussion with
 # upstream about this.
-build --java_runtime_version=openjdk_9 --tool_java_runtime_version=openjdk_9
+build --java_runtime_version=openjdk_11 --tool_java_runtime_version=openjdk_11
 
 # Prevent falling back to the host JDK.
 startup --noautodetect_server_javabase