Updates the configs to use the new protobuf properties. Adds
support for ARM/ARM64 Android builds.

Must be landed in conjunction with http://crrev.com/c/2841787 .

Bug: angleproject:2344
Bug: angleproject:5114
Change-Id: I49f4f46ceaa7ce9118c9f4b4ceb06353b00429b6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2842306
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>