dmaengine: Remove dma_device_satisfies_mask() wrapper

dmaengine: Remove dma_device_satisfies_mask() wrapper

Commit aa1e6f1a385eb2b0 ("dmaengine: kill struct dma_client and
supporting infrastructure") removed the last user of the
dma_device_satisfies_mask() wrapper.

Remove the wrapper, and rename __dma_device_satisfies_mask() to
dma_device_satisfies_mask(), to get rid of one more function starting
with a double underscore.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200121093311.28639-2-geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>