msm: nand: Add support for MSM bus voting

Add support for MSM bus voting to make sure buses
are voted for required clock frequency during NAND
data transfers.

Change-Id: I7d22ce9a772a7e3901acb138caf1565da7c7b7b1
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Merge "msm: nand: Add support for MSM bus voting"