pwm: meson: Fix confusing indentation

Fix indentation of return block.  Smatch warning:
    drivers/pwm/pwm-meson.c:139 meson_pwm_request() warn: inconsistent indenting
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Fixes: 211ed630 ("pwm: Add support for Meson PWM Controller")
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-meson.c

@@ -136,7 +136,7 @@ static int meson_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 			dev_err(dev, "failed to set parent %s for %s: %d\n",
 				__clk_get_name(channel->clk_parent),
 				__clk_get_name(channel->clk), err);
-				return err;
+			return err;
 		}
 	}