ARM: ux500: set proper GIC flags

The Ux500 will be able to wake up on any IRQ, so flag it with
IRQCHIP_SKIP_SET_WAKE, and we want to mask off the IRQs when
going to suspend to avoid transient effects so also flag
this with IRQCHIP_MASK_ON_SUSPEND.

Cc: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/cpu.c

@@ -51,6 +51,8 @@ void __init ux500_init_irq(void)
 	void __iomem *dist_base;
 	void __iomem *cpu_base;
 
+	gic_arch_extn.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
+
 	if (cpu_is_u8500_family()) {
 		dist_base = __io_address(U8500_GIC_DIST_BASE);
 		cpu_base = __io_address(U8500_GIC_CPU_BASE);