gpio-lpc32xx: Add GPI_28

This patch adds the missing gpi28 to the list of GPIOs in the GPI P3 "chip".

NOTE: This patch depends on incrementing LPC32XX_GPI_P3_MAX.  When applied
without the respective mach-lpc32xx patch (merged via arm-soc.git), gcc will
give a warning about "excess elements in array initializer" but this doesn't
harm.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-lpc32xx.c

@@ -113,7 +113,8 @@ static const char *gpi_p3_names[LPC32XX_GPI_P3_MAX] = {
 	 NULL,    NULL,    NULL,   "gpi15",
 	"gpi16", "gpi17", "gpi18", "gpi19",
 	"gpi20", "gpi21", "gpi22", "gpi23",
-	"gpi24", "gpi25", "gpi26", "gpi27"
+	"gpi24", "gpi25", "gpi26", "gpi27",
+	"gpi28"
 };
 
 static const char *gpo_p3_names[LPC32XX_GPO_P3_MAX] = {