minigbm: add amlogic backend

Add dumb amlogic backend based on udl.

BUG=none
TEST=emerge-falco minigbm

Change-Id: I435d0924d8206b4058b76bf403175f9b2cbb1291
Reviewed-on: https://chromium-review.googlesource.com/861865
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: Sergey Volk <servolk@chromium.org>
3 files changed