Allow userspace to set SPI_RX_CPHA_FLIP mode bit using the
SPI_IOC_WR_MODE32 ioctl.
Signed-off-by: Baruch Siach <baruch.siach@siklu.com>
Link: https://lore.kernel.org/r/6ae31ad24f8252418878b21a8759a04b78726dac.1649702729.git.baruch@tkos.co.ilSigned-off-by: Mark Brown <broonie@kernel.org>