drm-tests: remove ad-hoc gem map in atomictest.

Make atomictest use bs_mapper and bs_draw to remove ad-hoc map.

Now atomictest uses gem mapper because gem mapper can handle both tiled and
linear bo.

BUG=chromium:485571
TEST=Ran these commands:
    emerge-{BOARD} drm-tests
    cros deploy --board $BOARD $IP drm-tests
    stop ui
    ./atomictest disable_primary or others

Change-Id: Id9a67d4c59d8b018be63d930e225e7201edb6935
Reviewed-on: https://chromium-review.googlesource.com/475224
Commit-Ready: Dongseong Hwang <dongseong.hwang@intel.com>
Tested-by: Dongseong Hwang <dongseong.hwang@intel.com>
Reviewed-by: Dongseong Hwang <dongseong.hwang@intel.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
1 file changed