[AVR32] Don't reset PIO state at bootup

Leave the PIO lines as the bootloader left them. This allows us to
use PIOE without disturbing the SDRAM muxing.
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>

arch/avr32/mach-at32ap/pio.c

@@ -385,9 +385,6 @@ void __init at32_init_pio(struct platform_device *pdev)
 	 */
 	pio->gpio_mask = ~0UL;
 
-	pio_writel(pio, ODR, ~0UL);
-	pio_writel(pio, PER, ~0UL);
-
 	/* start with irqs disabled and acked */
 	pio_writel(pio, IDR, ~0UL);
 	(void) pio_readl(pio, ISR);