drm/amdgpu: always allocate cleared VRAM for GEM allocations

drm/amdgpu: always allocate cleared VRAM for GEM allocations

This adds allocation latency, but aligns better with user
expectations.  The latency should improve with the drm buddy
clearing patches that Arun has been working on.

In addition this fixes the high CPU spikes seen when doing
wipe on release.

v2: always set AMDGPU_GEM_CREATE_VRAM_CLEARED (Christian)

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3528
Fixes: a68c7eaa7a8f ("drm/amdgpu: Enable clear page functionality")
Acked-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Cc: Christian König <christian.koenig@amd.com>
(cherry picked from commit 6c0a7c3c693ac84f8b50269a9088af8f37446863)
Cc: stable@vger.kernel.org # 6.10.x