p51xx: update overlays

Change-Id: Idfb623f49c27c79e3c914872ee3f8da5f35f07d0
p51xx: unified fstab

Change-Id: I77f3d3c5409303e4af60c76b36859e05c6658472
p5100: recovery: use unified fstab

Change-Id: Icbd14e660ab75627204c66693b1869475ba9c652
P51xx: Fix BT Tethering

Change-Id: Ifda5fed0cf31aeb30ae503ce7ddfb2e11d65d4cf
mokee modify

Change-Id: I2b094159f2265653d06ea2f5abe1a2416ae90a6e
Merge branch 'cm-10.2' into martincz