Revert "Patch Final: sched: Folding nohz load accounting more accurate! + GOVS"

This reverts commit 251e8685f4d01ac7f0c4b0a76302e80b65a6ac0a.
Revert "[PATCHv2 1/2] sched: Folding nohz load accounting more accurate"

This reverts commit c52a6a65b3d88ed28acffe957f61d05ea8384a35.
Revert "Revert "sched: Cleanup cpu_active madness""

This reverts commit 783f12d76e3e85d2306e5891d49e2a7441c20103.
Revert "Revert "ARM: 6998/2: kernel: use proper memory barriers for bitops""

This reverts commit 167f81f50a813163fe67384516af7d85d77c82d3.