Update notes for submitted changes

* init.rc: disable virtual mem randomizaiton
Update notes for submitted changes

* adb: Add USB vendor ID for Metrologic
Update notes for submitted changes

* lets use linux default value for sched_latency_ns
Update notes for submitted changes

* Don't use control requests to read device serial numbers.
Update notes for submitted changes

* Fix fstab memory leak
* Cleanup fs_getline from fs_mgr
* mkbootimg: Add --dt parameter to specify DT image
* init: uevent: Add msm video symbolic link handling
Update notes for submitted changes

* remove redundant define in adb.h, and restore some selinux stuff to init.rc