Merge "Mount/Unmount secure containers Persist flags in PackageSetting. Flags...

Merge "Mount/Unmount secure containers Persist flags in PackageSetting. Flags are relevant to ApplicationInfo.FLAG_SYSTEM, Application.FLAG_ON_SDCARD, ApplicationInfo.FLAG_FORWARD_LOCK. New pm command to simulate mount/unmount in Pm. This will be removed when MountService/vold event generation gets fixed. Calls from MountService into PackageManager when media gets mounted/unmounted. Scan the packages and grant permissions when the sdcard gets mounted. This api might change again."