sunxi: psci: implement PSCI on R528

This patch adds the necessary code to make nonsec booting and PSCI
secondary core management functional on the R528/T113.

Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Tested-by: Maksim Kiselev <bigunclemax@gmail.com>
Tested-by: Kevin Amadiva <kevin.amadiva@mec.at>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/arch/arm/cpu/armv7/Kconfig b/arch/arm/cpu/armv7/Kconfig
index f015d13..4eb34b7 100644
--- a/arch/arm/cpu/armv7/Kconfig
+++ b/arch/arm/cpu/armv7/Kconfig
@@ -61,8 +61,9 @@
 config ARM_GIC_BASE_ADDRESS
 	hex
 	depends on ARMV7_NONSEC
-	depends on ARCH_EXYNOS5
+	depends on ARCH_EXYNOS5 || MACH_SUN8I_R528
 	default 0x10480000 if ARCH_EXYNOS5
+	default 0x03020000 if MACH_SUN8I_R528
 	help
 	  Override the GIC base address if the Arm Cortex defined
 	  CBAR/PERIPHBASE system register holds the wrong value.