regmap: mmio: Fix rebase error

A dangling pointless "ret 0" was left in and some unneeded
whitespace can go too.

Fixes: 81c0386 ("regmap: mmio: Support accelerared noinc operations")
Reported-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220831141303.501548-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Linus Walleij

drivers/base/regmap/regmap-mmio.c

@@ -410,14 +410,11 @@ static int regmap_mmio_noinc_read(void *context, unsigned int reg,
 		}
 	}
 
-
 out_clk:
 	if (!IS_ERR(ctx->clk))
 		clk_disable(ctx->clk);
 
 	return ret;
-
-	return 0;
 }