UPSTREAM: winsys/amdgpu: always allow GTT placements on APUs

Reviewed-by: Christian Knig <christian.koenig@amd.com>

BUG=b:69941535
TEST=emerge-grunt arc-mesa

(cherry picked from commit 7d2079908d9ef05ec3f35b7078833e57846cab5b)

Change-Id: I3955932af7f3e9ea01703a9b6e4f12251d924f80
Signed-off-by: Deepak Sharma <Deepak.Sharma@amd.com>
Reviewed-on: https://chromium-review.googlesource.com/1058555
Commit-Ready: Deepak Sharma <deepak.sharma@amd.com>
Tested-by: Deepak Sharma <deepak.sharma@amd.com>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
1 file changed