vold: Initialize flag variables

* These variables may actually be checked before they are set. Set them
  to reasonable defaults to prevent very strange behavior.

Change-Id: I303c4c6742ce86bbde6bda768f4e396263518ed2
Merge tag 'android-4.4.1_r1' into HEAD

Android 4.4.1 Release 1

Conflicts:
	Android.mk
	Volume.cpp
	Volume.h
	VolumeManager.cpp

Change-Id: Ic3e413d61df82b9fbe49079279ca0d00b08d8ed3
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_system_vold into kk4.4