Do not enable DM_ETH/MMC if subsystems are not enabled.
This saves memory for memory constrained boards like cse.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
select SPL_BOARD_INIT if SPL
select SPL_OF_CONTROL if SPL
select DM
select SPL_BOARD_INIT if SPL
select SPL_OF_CONTROL if SPL
select DM
select DM_GPIO
select SPL_DM if SPL
select DM_GPIO
select SPL_DM if SPL
select DM_SPI
select DM_SERIAL
select DM_SPI_FLASH
select DM_SPI
select DM_SERIAL
select DM_SPI_FLASH