drm/amdkfd: Fix instruction hazard in gfx12 trap handler

drm/amdkfd: Fix instruction hazard in gfx12 trap handler

commit 424648c3838133f93a34fdfe4f9d5597551e7b3b upstream.

VALU instructions with SGPR source need wait states to avoid hazard
with SALU using different SGPR.

v2: Eliminate some hazards to reduce code explosion

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Lancelot Six <lancelot.six@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7e0459d453b911435673edd7a86eadc600c63238)
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>