drm/msm/dsi: replace version checks with helper functions

Replace version checks with the helper functions bound to
cfg_handler for DSI v2, DSI 6G 1.x and DSI 6G v2.0+ controllers

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Sibi Sankar 2018-05-29 19:50:33 +05:30 • committed by Rob Clark
commit 8f7ca54090