drm/amdkfd: Add GFX1201 to svm_range_get_pte_flags function

GFX1201 was missed in the commit below. Adding it in.

Fixes: 628e1ace ("drm/amdkfd: mark GFX12 system and peer GPU memory mappings as MTYPE_NC")
Signed-off-by: Sreekant Somasekharan <sreekant.somasekharan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>