build: recovery: disable ro.adb.secure

We have no way of authorizing adb in recovery and this locks the
user/developer out of adb

Change-Id: I7df53e05a9e605bec525e22ff6aae069a85a593f
build: recovery: fully strip ro.adb.secure

Make it up to the recovery to enable secure adb or not

Change-Id: I0e9b7dd7f2a350a640e424941342f1640492c552
Merge remote-tracking branch 'CyanogenMod/cm-10.1' into cm-10.1