soc/mediatek: Create common DSI driver from mt8173

The DSI initialization is almost the same for 8173 and 8183, so we want
to move most of common functions into common/dsi.c.

The major board-specific functions left are:
 - reset (controller register has different format)
 - pin_drv_ctrl (8183 does not need this)

BUG=b:80501386,b:117254947
TEST=make -j # board=oak (mt8173)

Change-Id: I8d4369a3c84db551287a9c9d1b22f552c5f7518d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34769
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions