UPSTREAM: soc/mediatek/mt8192: Update DRAM blob to 1.6.3

This fixes the auto reboot issue for Spherion.

BUG=b:186363855
TEST=Hayato boots

Change-Id: I143cb55cd63f5cc3b1820317c96aa3ef4af70f55
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/blobs/+/2896724
Tested-by: Yu-Ping Wu <yupingso@chromium.org>
Auto-Submit: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
4 files changed