mmc: sdhci-msm: Club bus voting with clk gating

When sdcc clk is gated, same time driver removes bus vote.
So club bus voting with clk gating, this helps reduce one delayed
job from sdcc driver.

Change-Id: I1129eba9caa5ac08aadc111659d0aa88b02c11db
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>