ARM: dts: msm: Add GSI DMA channels for I2C instances on sdm845

GSI will be used if FIFO is disabled. Add GSI DMA channels for all I2C
instances for sdm845.

Change-Id: Ic2f41ae55f79e6d2301968a308e525276746dccc
Signed-off-by: Sagar Dharia <sdharia@codeaurora.org>
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>