clk: rockchip: fix coding style for clk-cpu.c

Fix the issue reported by checkpatch:
ERROR: space prohibited before that ',' (ctx:WxW)
+               writel(clksel->val , cpuclk->reg_base + clksel->reg);

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-cpu.c

@@ -116,7 +116,7 @@ static void rockchip_cpuclk_set_dividers(struct rockchip_cpuclk *cpuclk,
 
 		pr_debug("%s: setting reg 0x%x to 0x%x\n",
 			 __func__, clksel->reg, clksel->val);
-		writel(clksel->val , cpuclk->reg_base + clksel->reg);
+		writel(clksel->val, cpuclk->reg_base + clksel->reg);
 	}
 }