vfs_cache_pressure 조정
Xens1.3
 power: decrease the amount of time the device waits after entering lo…

…w power mode to freeze processes. Testing phase at the moment.
Revert "mmc-core: Increase timeout limits to improve when using bad sd cards"

This reverts commit 39c3d8e10f16908e6ec41b1171c1b3a7a7ffefb1.