uboot-phytec

Merge tag 'xilinx-for-v2018.09-rc2' of git://git.denx.de/u-boot-microblaze

Xilinx fixes for v2018.09-rc2

xilinx:
- Add support for zybo z7 and ultra96
- Tune zynq and zynqmp mini configurations
- Move SYS_MALLOC_LEN to Kconfig

fdt
 - make static funcs

gpio:
- Fix soft gpio driver
- Fix Zynq gpio driver by using platdata

microblaze:
- Fix Kconfig entry

spi
- Move ISSI to Kconfig