drm/amdgpu/gfx7: Simplify bitmask creation

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-02-08 08:48:15 -05:00 • committed by Alex Deucher
commit d3a7207bdb