Skip mode2 reset only for IMU enabled APUs when do S4.

This patch is to fix the regression issue
https://gitlab.freedesktop.org/drm/amd/-/issues/2483
It is generated by commit b5896266 ("drm/amdgpu: skip ASIC reset
for APUs when go to S4").

Fixes: b5896266 ("drm/amdgpu: skip ASIC reset for APUs when go to S4")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2483Tested-by: Yuan  Perry <Perry.Yuan@amd.com>
Signed-off-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x