ARM: LPC32xx: Support GPI 28

This patch adds the missing gpi28 to the supported GPIOs in the GPI P3 "chip".
Signed-off-by: Roland Stigge <stigge@antcom.de>

arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h

@@ -30,7 +30,7 @@
 #define LPC32XX_GPIO_P1_MAX 24
 #define LPC32XX_GPIO_P2_MAX 13
 #define LPC32XX_GPIO_P3_MAX 6
-#define LPC32XX_GPI_P3_MAX 28
+#define LPC32XX_GPI_P3_MAX 29
 #define LPC32XX_GPO_P3_MAX 24
 
 #define LPC32XX_GPIO_P0_GRP 0