Revert "cpufreq: Initialize utilization with 0"

This reverts commit a5c7d64d21ac5e100be89e696baae1780abe093b.
Revert "cpufreq: force cpuN policy to match cpu0 when changing freq or gov"

This reverts commit 393c6989db36b426a126d06de6604819c1db5904.
Revert "android/lowmemorykiller: Account for total_swapcache_pages"

This reverts commit 8b81e9b23ac6327e6e723eb4b8bab5db82e1f5f9.
derp fixes: take one