mmc: sh_mmcif: Simplify division/shift logic

"a / (1 << b)" == "a >> b".

No change in generated code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/68d689c39c769d298b53ee8cb9de0e594a2999b2.1645460780.git.geert+renesas@glider.beSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sh_mmcif.c

@@ -521,8 +521,7 @@ static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
 		}
 
 		dev_dbg(dev, "clk %u/%u (%u, 0x%x)\n",
-			(best_freq / (1 << (clkdiv + 1))), clk,
-			best_freq, clkdiv);
+			(best_freq >> (clkdiv + 1)), clk, best_freq, clkdiv);
 
 		clk_set_rate(host->clk, best_freq);
 		clkdiv = clkdiv << 16;
@@ -1012,8 +1011,8 @@ static void sh_mmcif_clk_setup(struct sh_mmcif_host *host)
 		 */
 		host->clkdiv_map = 0x3ff;
 
-		host->mmc->f_max = f_max / (1 << ffs(host->clkdiv_map));
-		host->mmc->f_min = f_min / (1 << fls(host->clkdiv_map));
+		host->mmc->f_max = f_max >> ffs(host->clkdiv_map);
+		host->mmc->f_min = f_min >> fls(host->clkdiv_map);
 	} else {
 		unsigned int clk = clk_get_rate(host->clk);