drm/amdgpu: Do not poweroff UVDJ in JPEG4_0_3

Update power gate setting to not poweroff UVDJ in JPEG4_0_3.

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>