drm/amdgpu: enable sdma0 tmz for Raven/Renoir(V2)

Without driver loaded, SDMA0_UTCL1_PAGE.TMZ_ENABLE is set to 1
by default for all asic. On Raven/Renoir, the sdma goldsetting
changes SDMA0_UTCL1_PAGE.TMZ_ENABLE to 0.
This patch restores SDMA0_UTCL1_PAGE.TMZ_ENABLE to 1.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org