pinctrl: keembay: Convert to use struct pingroup

The pin control header provides struct pingroup.
Utilize it instead of open coded variants in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231204160033.1872569-5-andriy.shevchenko@linux.intel.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-keembay.c

@@ -1517,7 +1517,7 @@ static int keembay_gpiochip_probe(struct keembay_pinctrl *kpc,
 
 static int keembay_build_groups(struct keembay_pinctrl *kpc)
 {
-	struct group_desc *grp;
+	struct pingroup *grp;
 	unsigned int i;
 
 	kpc->ngroups = kpc->npins;
@@ -1528,7 +1528,7 @@ static int keembay_build_groups(struct keembay_pinctrl *kpc)
 	/* Each pin is categorised as one group */
 	for (i = 0; i < kpc->ngroups; i++) {
 		const struct pinctrl_pin_desc *pdesc = keembay_pins + i;
-		struct group_desc *kmb_grp = grp + i;
+		struct pingroup *kmb_grp = grp + i;
 
 		kmb_grp->name = pdesc->name;
 		kmb_grp->pins = (int *)&pdesc->number;