Remove support for legacy VE memory map in FVP

This patch removes support for legacy Versatile Express memory map for the
GIC peripheral in the FVP platform. The user guide is also updated for the
same.

Change-Id: Ib8cfb819083aca359e5b46b5757cb56cb0ea6533
diff --git a/plat/arm/common/arm_gicv3.c b/plat/arm/common/arm_gicv3.c
index 33f8018..a20fd56 100644
--- a/plat/arm/common/arm_gicv3.c
+++ b/plat/arm/common/arm_gicv3.c
@@ -45,15 +45,15 @@
 #pragma weak plat_arm_gic_pcpu_init
 
 /* The GICv3 driver only needs to be initialized in EL3 */
-uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
+static uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
 
 /* Array of Group1 secure interrupts to be configured by the gic driver */
-const unsigned int g1s_interrupt_array[] = {
+static const unsigned int g1s_interrupt_array[] = {
 	PLAT_ARM_G1S_IRQS
 };
 
 /* Array of Group0 interrupts to be configured by the gic driver */
-const unsigned int g0_interrupt_array[] = {
+static const unsigned int g0_interrupt_array[] = {
 	PLAT_ARM_G0_IRQS
 };