ARM: GIC: provide a single initialization function for boot CPU

Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h
index 7f34333b..387c6ae 100644
--- a/arch/arm/include/asm/hardware/gic.h
+++ b/arch/arm/include/asm/hardware/gic.h
@@ -33,8 +33,8 @@
 #define GIC_DIST_SOFTINT		0xf00
 
 #ifndef __ASSEMBLY__
-void gic_dist_init(unsigned int gic_nr, void __iomem *base, unsigned int irq_start);
 void gic_cpu_init(unsigned int gic_nr, void __iomem *base);
+void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
 void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
 #endif