ARM: zynqmp: Fix SPL_DM_SPI dependencies

Add missing dependencies for DM_SPI_FLASH.
Kconfig reports it as:
WARNING: unmet direct dependencies detected for SPL_DM_SPI_FLASH
  Depends on [n]: SPL [=n] && SPL_DM [=n]
  Selected by [y]:
  - ARCH_ZYNQMP [=y] && <choice> && SPL_DM_SPI [=y]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 files changed