drm/amdgpu: Add userq fence support to SDMAv7.0

- Add userq fence support to SDMAv7.0.
- GFX12's user fence irq src id differs from GFX11's,
  hence we need create a new irq srcid header file for GFX12.

  User fence irq src id information-
  GFX11 and SDMA6.0 - 0x43
  GFX12 and SDMA7.0 - 0x46

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>