ARM: GIC: move gic_data[] initialization into gic_init()
ARM: GIC: move gic_data[] initialization into gic_init()

This avoids writing unnecessarily to gic_data[] from other CPUs,
making this a mostly read-only variable.

Reviewed-by: Catalin Marinas <15ce75b290ebaf27c3f9fd73ab848685ed3d8261@arm.com>
Tested-by: Abhijeet Dharmapurikar <98996d53ce579fa37f08d0061abc5355e223c79e@codeaurora.org>
Signed-off-by: Russell King <f6aa0246ff943bfa8602cdf60d40c481b38ed232@arm.linux.org.uk>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs