clk: qcom: clk-branch: Increase the polling timeout for branch clocks

In certain cases, branch clocks might take longer than the
current polling timeout of 200usecs to turn on/off. Increase
this value to 500usecs instead.

Change-Id: I731c442ca4e38545041d7afb0c07bcee67095530
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
diff --git a/drivers/clk/qcom/clk-branch.c b/drivers/clk/qcom/clk-branch.c
index 3ca8e1c..46ced08 100644
--- a/drivers/clk/qcom/clk-branch.c
+++ b/drivers/clk/qcom/clk-branch.c
@@ -92,7 +92,7 @@
 	} else if (br->halt_check == BRANCH_HALT_ENABLE ||
 		   br->halt_check == BRANCH_HALT ||
 		   (enabling && voted)) {
-		int count = 200;
+		int count = 500;
 
 		while (count-- > 0) {
 			if (check_halt(br, enabling))