Remove "rc1" from all package names

Prepare for 5.2 final release

Change-Id: I66af2125adb688aabf0be2d225c4dc012b4b3ebf
Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com>
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
Enable Enginio for Win/Android packages again

Compiles now so enable online repository for those as well

Change-Id: I187016cd46c5114dcc36a10c48d73d83a9052b4d
Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com>