drm/amdgpu: add SPI idle check for GC 9.4.4 in gfx_v9_4_3_is_idle()

drm/amdgpu: add SPI idle check for GC 9.4.4 in gfx_v9_4_3_is_idle()

GC 9.4.4 uses SPI busy status for idle detection instead of GRBM GUI_ACTIVE.
Add version check to use SPI_BUSY for 9.4.4 while keeping GRBM_STATUS
GUI_ACTIVE check for other GC versions.

v2: move this check into amdgpu_ptl_perf_monitor_ctrl(Lijo)

Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>