pinctrl: meson: fix gpio request disabling other modes

The pinctrl_gpio_request is called with the "full" gpio number, already
containing the base, then meson_pmx_request_gpio is then called with the
final pin number.
Remove the base addition when calling meson_pmx_disable_other_groups.

Fixes: 6ac730951104 ("pinctrl: add driver for Amlogic Meson SoCs")
CC: Beniamino Galvani <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Acked-by: Kevin Hilman <[e-mail]>
Acked-by: Beniamino Galvani <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/meson/pinctrl-meson.c

···
 {
 	struct meson_pinctrl *pc = pinctrl_dev_get_drvdata(pcdev);
 
-	meson_pmx_disable_other_groups(pc, range->pin_base + offset, -1);
+	meson_pmx_disable_other_groups(pc, offset, -1);
 
 	return 0;
 }