jf-common: bye /persdata

Change-Id: Id2a7ace59cf3e37f42f18f450d32e2242eb69d54
jf: add magic samsung kernel cmdline

* from GPE ML4
* left out maxcpus=2 (caused boot crashes)

Change-Id: I7679264de7185440c71f9588766c3d25b9d6db6c
Merge "jf-common: bye /persdata" into cm-11.0
Merge "jf: add magic samsung kernel cmdline" into cm-11.0
Merge branch 'cm-11.0' into martincz