Add mobile example category tags for the chosen examples.
Add for the ones that work best for both, Android and iOS.
Remove from the ones that do not work for both (at least yet).
Added
- hellogles3
Removed
- qtandroidnotifier (not iOS)
Fixes: QTBUG-116780
Change-Id: Icb4c7ba1f22d4e67089a565071d83cdf8ec95896
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit bbf0022d99b223239c7ce7769af9f58c01fc5c68)
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
42df73235f