dma: Add i.MX6 support to drivers/dma/apbh_dma.c

This will be used by the i.MX6 NAND support.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
4 files changed