Don't expand the contact picture behind the call buttons during call.

Doing that avoids stretching more than needed. To avoid a visual 'jump'
of the contact picture when answering the call, animate the contact
picture layout transition.

Change-Id: I6a83281ce594ad2b00aaeb161d5e1c0cb6e4bdef

Patchset: 4
http://review.cyanogenmod.org/#/c/67679/
Merge branch 'cm-11.0' of https://github.com/temasek/android_packages_apps_InCallUI into HEAD

Conflicts:
	src/com/android/incallui/CallCardFragment.java

Change-Id: Ice6c8006a3175fa7c09b0e09395f9e78afd73a40