ARM: dts: add PMU support in exynos5440

PMU in exynos5440 generates one interrupt per core and needs to be
passed from DT to GIC to register it.

Signed-off-by: Subash Patel <subash.rp@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
1 file changed