Revert "ARM: cacheflush: added iovec-based cache flush system call"

This reverts commit ea8694c6b292cdf0e16b752f1e8e274d88fafd4d.
mm: frontswapt: backport from 3.11
mm: cleancache: Update to backport from 3.11
zsmalloc backport from 3.11 / Adapt to 3.0
mm: frontswap: backport from 3.11
Revert "mm: frontswap: backport from 3.11"

This reverts commit 67b5b44954a16f5de70f45ad249ce7a00f1bd94a.
ZCACHE: Update to 3.11
Fixes
omap: board-mapphone: release st_wakelock after 5s
better fix for the st_wakelock

Change-Id: Ib762a7a637e8c8ad13778d56255450d0fee107f7