Merge tag 'u-boot-stm32-20200813' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

  - Use IS_ENABLED to prevent ifdef in board_key_check for STM32MP
  - Add STM32 FMC2 EBI controller driver
  - Fix dwc3-sti-glue which allows STiH410-B2260 to boot again
  - Add fitImage its entry for 587-200 DHCOR SoM
  - Add both PDK2 and DRC02 DT into DHCOM fitImage its
  - Fix DHCOM KS8851 ethernet MAC address
  - Remove stm32mp1 board.c file
  - Use const for struct node_info in board stm32mp1.c file