clk: Convert basic types to clk_hw based provider APIs

We're removing struct clk from the clk provider API, so switch
this code to using the clk_hw based provider APIs.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 4a8ebfd..83de57a 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -45,8 +45,7 @@
 		unsigned long best_parent;
 
 		best_parent = (rate / fix->mult) * fix->div;
-		*prate = __clk_round_rate(__clk_get_parent(hw->clk),
-				best_parent);
+		*prate = clk_hw_round_rate(clk_hw_get_parent(hw), best_parent);
 	}
 
 	return (*prate / fix->div) * fix->mult;