ARM: gic: Allow gic arch extensions to provide irqchip flags

Tegra can benefit from the IRQCHIP_MASK_ON_SUSPEND flag, allow it
to be passed to the gic irq chip.

Signed-off-by: Colin Cross <[email protected]>
Signed-off-by: Santosh Shilimkar <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Tested-and-Acked-by: Shawn Guo <[email protected]>
Tested-by: Vishwanath BS <[email protected]>

Author: colincross

arch/arm/common/gic.c

@@ -544,6 +544,7 @@ void __init gic_init(unsigned int gic_nr, unsigned int irq_start,
 	if (gic_nr == 0)
 		gic_cpu_base_addr = cpu_base;
 
+	gic_chip.flags |= gic_arch_extn.flags;
 	gic_dist_init(gic, irq_start);
 	gic_cpu_init(gic);
 	gic_pm_init(gic);