pinctrl: npcm8xx: Fix incorrect struct npcm8xx_pincfg assignment

Sparse is not happy about implementation of the NPCM8XX_PINCFG()

 pinctrl-npcm8xx.c:1314:9: warning: obsolete array initializer, use C99 syntax
 pinctrl-npcm8xx.c:1315:9: warning: obsolete array initializer, use C99 syntax
 ...
 pinctrl-npcm8xx.c:1412:9: warning: obsolete array initializer, use C99 syntax
 pinctrl-npcm8xx.c:1413:9: warning: too many warnings

which uses index-based assignment in a wrong way, i.e. it missed
the equal sign and hence the index is simply ignored, while the
entries are indexed naturally. This is not a problem as the pin
numbering repeats the natural order, but it might be in case of
shuffling the entries. Fix this by adding missed equal sign and
reformat a bit for better readability.

Fixes: acf4884 ("pinctrl: nuvoton: add NPCM8XX pinctrl and GPIO driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/20250318105932.2090926-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: andy-shev

drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c

@@ -1290,12 +1290,14 @@ static struct npcm8xx_func npcm8xx_funcs[] = {
 };
 
 #define NPCM8XX_PINCFG(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q) \
-	[a] { .fn0 = fn_ ## b, .reg0 = NPCM8XX_GCR_ ## c, .bit0 = d, \
+	[a] = {								  \
+			.flag = q,					  \
+			.fn0 = fn_ ## b, .reg0 = NPCM8XX_GCR_ ## c, .bit0 = d, \
 			.fn1 = fn_ ## e, .reg1 = NPCM8XX_GCR_ ## f, .bit1 = g, \
 			.fn2 = fn_ ## h, .reg2 = NPCM8XX_GCR_ ## i, .bit2 = j, \
 			.fn3 = fn_ ## k, .reg3 = NPCM8XX_GCR_ ## l, .bit3 = m, \
 			.fn4 = fn_ ## n, .reg4 = NPCM8XX_GCR_ ## o, .bit4 = p, \
-			.flag = q }
+	}
 
 /* Drive strength controlled by NPCM8XX_GP_N_ODSC */
 #define DRIVE_STRENGTH_LO_SHIFT		8