[U-Boot] WaRP7 nok on master

[Pierre-Jean Texier]

Hi Fabio, Stefano,

Just FYI, I just tested the U-Boot master branch (with u-boot-imx merges).
And I have some problems when the WaRP7 boot-up.
In fact, no output...

However, on u-boot-imx, everything works well (tags/u-boot-imx-20190426).

After some manipulation with git bisect, it appears that the problem 
comes from commit [1].
So, with a git revert 3a7c45f6a7725808e2e82908be4bc90d4d78e737, 
everything works again.

Without this revert, the WaRP7 is not
functional (also the pico-pi i.MX7 if DM_SERIAL is implemented, tested 
by Joris in CC).



Thanks

BR
/Pierre-Jean

[1] 
https://github.com/trini/u-boot/commit/3a7c45f6a7725808e2e82908be4bc90d4d78e737