drm/amdgpu/gfx12: fix EOP interrupt routing for KQ and userq

drm/amdgpu/gfx12: fix EOP interrupt routing for KQ and userq

Try KQ by ring_id first (KCQ and UQ never share a HW slot); fall back
to amdgpu_userq_process_fence_irq() on miss, since KCQ EOPs were
misrouted into the userq fence path when enable_mes is true.

Require a strict (me,pipe,queue) match in the gfx case, then userq gfx
EOPs fall through to amdgpu_userq_process_fence_irq().

Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>