Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask"

This reverts commit c6e5485e0cb509292a14e880e1944143f99758c7
due to failures such as:

e1000e 2000:01:00.0: Tx DMA map failed

Signed-off-by: Scott Wood <oss@buserror.net>
1 file changed