ARM: dts: msm: Enable gpu-quirk-secvid-set-once for SDM670

Enable quirk gpu-quirk-secvid-set-once to set the GPU secure
region registers once before trustzone loads the zap shader
since that will change these registers access to read only.

Change-Id: If719030590028f7742d52166e09c1521428d0fb6
Signed-off-by: Deepak Kumar <dkumar@codeaurora.org>