jf-common: dex-opt to cache

cache partition is 2gb, seriously, this is fine for us

Change-Id: I82be27c0bc5ea0f93b2ebd9b59f3e7dc0bd62006
jf: fix race condition at boot

Samsung's init is shit. Even Samsung knows this. So what they did was
limit the number of cpus that get to be used at boot. This helps prevent
a race condition leading to randomish boot hangs.

Need to bring these cores online later manually.

Change-Id: I3b2f2a7475977f81b1d538b0b9319b1e9e4f42f3
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_samsung_jf-common into kk_mkt