Profiles: add PROFILES_STATE_CHANGED_ACTION broadcast intent

Added a new broadcast intent to profiles manager (PROFILES_STATE_CHANGED_ACTION), for
notify an event when profiles are enabled or disabled.

Change-Id: If701b3be54157c23acdf74e1da658fbce335437e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "Profiles: add PROFILES_STATE_CHANGED_ACTION broadcast intent" into cm-10.1