ARM: dts: Fix typo in trip point temperature for exynos5420/5440

Remove the extra zero in the "cpu-crit-0" trip point for exynos5420
and exynos5440.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>