drm-tests: revert temporarily use of mmap() to map BO

mmap() works apparently fine but I probably have to fill in the
info->map_data structure; failing to do so causes a segmentation
fault. This CL reverts back to using gbm_bo_map2() while I find
out a more permanent solution.

BUG=b:185492766
BUG=b:183760490
TEST=plane_test -f NV12 on volteer

Change-Id: I10e3ac3a354c012d8c0b451b80006d04a84301f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/drm-tests/+/2852813
Tested-by: Miguel Casas <mcasas@chromium.org>
Auto-Submit: Miguel Casas <mcasas@chromium.org>
Commit-Queue: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
1 file changed