drm/amdgpu: update regGL2C_CTRL4 value in golden setting

This patch to update regGL2C_CTRL4 in golden setting.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.7.x