ARM: EXYNOS4: modify interrupt mappings for external GIC

To support external GIC needs to update mapping of interrupt number.
This patch modifies it for external GIC and accordingly removes
the unused code.

Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2 files changed