i2c-qcom-geni: Handle the DMA transfer complete interrupt

Wait for RX_DMA_DONE or TX_DMA_DONE interrupt for transfer
completion in i2c DMA mode.

Change-Id: I9b8a7661363ad2cda67cbfa229fd96a88282ddff
Signed-off-by: Vipin Deep Kaur <vkaur@codeaurora.org>
2 files changed