drm/amdgpu: enable tmz by default for GC 10.3.7

Add IP GC 10.3.7 in the list of target to have
tmz enabled by default.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.18.x