dma: check whether memory to memory is allowed

This patch checks whether memory to memory is allowed for the device.
Tested it with tests/drivers/dma with one of the 2 settings:
CONFIG_DMA1_NAME=DMA_0 -> test fails with error message on console
	and an error at configuration.
CONFIG_DMA2_NAME=DMA_0 -> test succeeds
Fixes: #7547

Signed-off-by: Alexander Polleti <metapsycholo@gmail.com>