samsung cpuidle pull request.

Hi Nicolas,

This is a request to pull L2 retention cpuidle implementation from git://git.linaro.org/people/amitdanielk/linux.git (branch- samsung_cpuidle_l2_retention)

The top 5 patches on this refers to the work and this is heavily based on Russell's rmk-next tree. So if it is possible to take this patches for this month linaro release then please pull them.

All these patches with minor modifications will be upstreamed to mainline once Russell tree is in sync with Samsung's maintainers tree.

Thanks, Amit Daniel Linaro PMWG member