powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers

Add 'fsl,qoriq-gpio' compatiable to the list we search for to bind
against for mpc8xxx_gpio.  This compatiable will be used on P1-P5xxx
QorIQ devices like P4080.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

arch/powerpc/sysdev/mpc8xxx_gpio.c

@@ -330,6 +330,9 @@ static int __init mpc8xxx_add_gpiochips(void)
 	for_each_compatible_node(np, NULL, "fsl,mpc8610-gpio")
 		mpc8xxx_add_controller(np);
 
+	for_each_compatible_node(np, NULL, "fsl,qoriq-gpio")
+		mpc8xxx_add_controller(np);
+
 	return 0;
 }
 arch_initcall(mpc8xxx_add_gpiochips);