Fix documenation IMS registration state.

Bug: 11599127
Change-Id: Id0016bca45ea84983c9280f55b0b1ccdcececc03
Merge tag 'android-4.4.1_r1' into HEAD

Android 4.4.1 Release 1
Merge remote-tracking branch 'cm/android-4.4' into android-4.4