drm/ttm: max_cpages is in unit of native page

fix calculation.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2017-12-01 18:23:56 +08:00 • committed by Alex Deucher
commit a8d25a8629