spi: spi-msm-geni: Set the mode1 for SPI slave

Spi slave will support only mode1, so set the CPHA parameter
for spi slave.

wrongly added condition by merge conflict, hence removing it.

Change-Id: I37f9b159b01c9253de1a9e8b46e41160fa940660
Signed-off-by: Aniket Randive <arandive@codeaurora.org>