clk: qcom: clk-branch: Add clock ops for Voltage voting

In the cases where the branch clocks requires to vote on a voltage rail
add the clock ops callbacks for the same.

Change-Id: If7ffbc4fdda1fb71c1d097f56a5eb762859eb2c4
Signed-off-by: Taniya Das <tdas@codeaurora.org>

drivers/clk/qcom/clk-branch.c

@@ -200,6 +200,10 @@ static void clk_branch2_init(struct clk_hw *hw)
 }
 
 const struct clk_ops clk_branch2_ops = {
+	.prepare = clk_prepare_regmap,
+	.unprepare = clk_unprepare_regmap,
+	.pre_rate_change = clk_pre_change_regmap,
+	.post_rate_change = clk_post_change_regmap,
 	.enable = clk_branch2_enable,
 	.disable = clk_branch2_disable,
 	.is_enabled = clk_is_enabled_regmap,