imx: move gpio init after to irq init

The commit 9a763bf "get rid of mxc_gpio_init" changed gpio_init
and irq_init sequence. Usually we will call set_irq_chained_handler
in gpio_init functions, this should be called after the irq_init
called, otherwise the chained irq can't get propoer irq_chip and this
irq will remain masked even we called set_irq_chained_handler.

Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-imx/mm-imx1.c

@@ -45,6 +45,6 @@ int imx1_register_gpios(void);
 
 void __init mx1_init_irq(void)
 {
-	imx1_register_gpios();
 	mxc_init_irq(MX1_IO_ADDRESS(MX1_AVIC_BASE_ADDR));
+	imx1_register_gpios();
 }