clk: qcom: Add voter clocks for gcc_aggre_ufs_phy_axi_clk for SDM670

Voter clock support for gcc_aggre_ufs_phy_axi_clk is required as
eMMC and UFS drivers need to vote for the clock concurrently.

Change-Id: I145cf1610d54f6cd8fc2657389ecb8aae44a9875
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>