[AVR32] Fix a couple of sparse warnings

Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>

arch/avr32/mach-at32ap/extint.c

@@ -142,7 +142,7 @@ static int eic_set_irq_type(unsigned int irq, unsigned int flow_type)
 	return ret;
 }
 
-struct irq_chip eic_chip = {
+static struct irq_chip eic_chip = {
 	.name		= "eic",
 	.ack		= eic_ack_irq,
 	.mask		= eic_mask_irq,

arch/avr32/mach-at32ap/pm.h

@@ -113,8 +113,8 @@
 
 /* Register access macros */
 #define pm_readl(reg)							\
-	__raw_readl((void __iomem *)AT32_PM_BASE + PM_##reg)
+	__raw_readl((void __iomem __force *)AT32_PM_BASE + PM_##reg)
 #define pm_writel(reg,value)						\
-	__raw_writel((value), (void __iomem *)AT32_PM_BASE + PM_##reg)
+	__raw_writel((value), (void __iomem __force *)AT32_PM_BASE + PM_##reg)
 
 #endif /* __ARCH_AVR32_MACH_AT32AP_PM_H__ */