spi: rspi: Pass spi_master pointer to rspi_release_dma()

rspi_release_dma() doesn't need access to any fields in the driver private
data, except for the pointer to the SPI master object. Hence just pass the
needed pointer.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit afcc98dec91b7754e754670bdec0290aa07c3565)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
1 file changed