ASACORE-775 Clean up documentation in the AboutIcon class

Fixed documentation errors.  Constructors don't return values.
Also fixed small spelling error in thrown bus exception.

Change-Id: I7c715bf234d7f04b58af28bbc3ab0d2a74fd50ef
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Merge "ASACORE-775 Clean up documentation in the AboutIcon class"