linux-phytec-ti

PCI: keystone: Set DMA mask and coherent DMA mask

Set DMA mask and coherent DMA mask such to indicate the device
can address the entire address space (32-bit in the case of
K2G and 48-bit in the case of AM654.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>