linux-phytec-ti

Revert "ARM: ixp4xx: Make dma_set_coherent_mask common, correct implementation"

This reverts commit bfdad565ae0a61ac943974b8ae61ec0ed55ceb04.

The patch turned out to be incorrect, and will be replaced
with a correct patch.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>