Fixes for 2020.04
-----------------

- DM : mx6sabresd
- mx6ul_14x14_evk: fix video
- mx8qxp; fix console for booting
- sync DTS with kernel (imx6sx)
- drop obsolete woodburn (mx35)

Travis: https://travis-ci.org/sbabic/u-boot-imx/builds/660550811
This tag has no release notes.