Unify the BtLE service class id descriptions

The previous class ids where sorted by uuid. We should keep it this way
even if sorting by alphabet is more convenient for the reader.

This change is done to align the documentation with
https://codereview.qt-project.org/#change,79960

Task-number: QTBUG-36123
Change-Id: Ib859c666b069f7c7f955823904e147db96021f34
Reviewed-by: Nedim Hadzic <nedimhadzija@gmail.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>