Disable f16 and srgb configs for Android CPU perf.

This is a followup to https://skia-review.googlesource.com/c/9021/

BUG=skia:

Change-Id: Ie8bae20162759c2545690fcc4c8867a478914c35
Reviewed-on: https://skia-review.googlesource.com/9065
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
7 files changed