+ cpuidle: testing

- "ARM: EXYNOS: handle properly the return values" - https://github.com/kgene/linux-samsung/commit/255854387b071af5f9516af99b9ca09c5dc5a1d5
- "ARM: EXYNOS: replace cpumask by the corresponding macro" - https://github.com/kgene/linux-samsung/commit/de358b758d8ff65b4b74a46ecbe3e88498ab7a72
+ testing: changes from -> https://github.com/kgene/linux-samsung/commits/for-next/arch/arm/mach-exynos/cpuidle.c