ASACORE-1210 All iOS and OS X samples should include About framework files

Even if a sample does not use About, the framework it uses should include all
about files since About is now a part of core

Change-Id: I5cc1cb2ae2e3c33f19b39223dbfa3c66c22b52a5
Signed-off-by: Nikhil Dabhade <ndabhade@qce.qualcomm.com>
Merge "ASACORE-1210 All iOS and OS X samples should include About framework files" into RB14.12