Merge tag 'xilinx-for-v2019.04-rc2' of git://git.denx.de/u-boot-microblaze

Xilinx changes for v2019.04-rc2

xilinx:
- Start to use distro boot commands first
- Setup fdtfile on ZynqMP
- Move mac addr eeprom read to common location
- Convert to OF_SEPARATE
- Switch all board to DM_I2C
- Some DT syncs

i2c:
- Remove !DM_I2C zynq driver

versal:
- Enable some more features
- Add mini configurations