Power menu into navring targets (1/2)

- This commit use the intent added here: 0efd6981a6c4b299204b8d4f5495bddb5049f30e

The intent added in  core/java/android/content/Intent.java is called when power menu is choosed

Change-Id: Ifcf898ce7e3221fc67c18b2a54806ef344f68e7f