iOS: Remove duplicate class name from qmldir

It was added twice, which breaks the build when using Multimedia on iOS

Change-Id: I0b5f08bc57d5d558fb060b00d5bdeb4149499a0d
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Add mmrenderer configure check

No all QNX versions/variations have a mmrenderer by
default, so we need to check for it, otherwise
it fails to compile.

Change-Id: I3efe9df37cf7807c1b0ac4d2e8f49aa02e3408cd
Reviewed-by: Frank Osterfeld <frank.osterfeld@kdab.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Merge remote-tracking branch 'origin/release' into stable

Change-Id: Ia5060cb07311256caa0a8c7f03af292ce3a26213
Merge "Merge remote-tracking branch 'origin/release' into stable" into refs/staging/stable