drm/amdgpu: reenable BACO support for 699F:C7 polaris12 SKU

drm/amdgpu: reenable BACO support for 699F:C7 polaris12 SKU

BugLink: https://bugs.launchpad.net/bugs/1949050
This reverts the commit below:
"drm/amdgpu: disable BACO support for 699F:C7 polaris12 SKU temporarily".
As the S3 hang issue has been fixed by another commit:
"drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend".

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 602e338ffed31b1f15c706ea109366e3bae6e39b)
Signed-off-by: Koba Ko <koba.ko@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>