uboot-phytec

Merge tag 'ti-v2020.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-ti

K3 J721E/AM65X:
- UART boot fixes for J721E
- Enabling debug uart for AM65x

DRA7xx/AM57xx:
- Preveinting boot from Invalid boot configuration for AM57xx

Keysonte2:
- Linux Boot fixes for K2 platforms.

AM33/AM43/Davinci:
- Ethernt boot fixes for AM43XX
- USB Host boot fixes for AM43XX