Handle backup transport registration dynamically

Bug 11369873

Change-Id: I9bbdcc21ce25159c6645690123b5d03c553b0ddc

Conflicts:
	services/java/com/android/server/BackupManagerService.java
	services/java/com/android/server/pm/PackageManagerService.java
Add config_restartRadioAfterProvisioning

Bug: 11673637
Change-Id: Ie758a303fd751d204fd6baa60217e88df6376aae

Conflicts:
	core/res/res/values/config.xml

Conflicts:
	core/res/res/values/config.xml