drivers: mipi_dsi: dsi_mcux_2l add support for SMARTDMA, and byte swapping

Add support for SMARTDMA transfers, and byte swapping of RGB565 data.
Additionally, the limits on TX data size have been impelemented in the
MIPI DSI driver, as opposed to the RM67162 display where they were
previously added.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>