Revert "drm/amd: Stop evicting resources on APUs in suspend"

[ Upstream commit d0ce1aaa ]

This reverts commit 3a9626c8.

This breaks S4 because we end up setting the s3/s0ix flags
even when we are entering s4 since prepare is used by both
flows.  The causes both the S3/s0ix and s4 flags to be set
which breaks several checks in the driver which assume they
are mutually exclusive.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3634


Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ce8f7d95)
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>