clk: core: replace clk_{readl,writel} with {readl,writel}

Now that clk_{readl,writel} is just an alias for {readl,writel}, we can
switch all users of clk_* to use the accessors directly and remove the
helpers.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
[sboyd@kernel.org: Also convert renesas file so that this can be
compile independently]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/drivers/clk/rockchip/clk-ddr.c b/drivers/clk/rockchip/clk-ddr.c
index ebce526..09ede69 100644
--- a/drivers/clk/rockchip/clk-ddr.c
+++ b/drivers/clk/rockchip/clk-ddr.c
@@ -82,7 +82,7 @@ static u8 rockchip_ddrclk_get_parent(struct clk_hw *hw)
 	struct rockchip_ddrclk *ddrclk = to_rockchip_ddrclk_hw(hw);
 	u32 val;
 
-	val = clk_readl(ddrclk->reg_base +
+	val = readl(ddrclk->reg_base +
 			ddrclk->mux_offset) >> ddrclk->mux_shift;
 	val &= GENMASK(ddrclk->mux_width - 1, 0);