Merge tag 'mediatek-drm-fixes-5.10' of https://git.kernel.org/pub/scm/linux/kernel...

Mediatek DRM Fixes for Linux 5.10

1. Remove unused variable.
2. Modify horizontal front/back porch byte formula.

Signed-off-by: Dave Airlie <[email protected]>
From: Chun-Kuang Hu <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]