spi: spi-geni-qcom: Introduce GSI DMA mode

Introduce using GSI DMA mode for larger transfers. Use the dmaengine
interface to the GSI DMA driver.

Change-Id: I6519b2c53e290ed498a7fc4f2e2a14f7a563e278
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
1 file changed