add object names as API for RTA to radio buttions
add object names as API for RTA to radio buttions

Task-number: QTIFW-372

Change-Id: I4b2272d0f7c482bcae2619e46e1ab3df0db77bbc
Reviewed-by: Tarja Sundqvist <4ae0ac7fe0c13c7404e7145e8a1d41d2e764c709@digia.com>
Reviewed-by: Niels Weber <df24410c43e1f71d7f720aa26e4fcb77ce70f242@digia.com>

olear/qtifw,olear/qtifw,olear/qtifw,olear/qtifw