QNX: enable AudioCapture plugin.
QNX: enable AudioCapture plugin.

This allows to use the QAudioRecorder API on QNX (and Blackberry), using
the low-latency audio plugin as backend.

Change-Id: I9bed7c01948a40f931f2a6b29c0f5cbfc99635bd
Reviewed-by: Rafael Roquetto <14999faec5bfd0b55ab2dfc74ae05bcf46969760@kdab.com>
Reviewed-by: Thomas McGuire <2a8c2e178f359344f9cfed0db24d661e86eba971@kdab.com>

mer-qt/qtmultimedia,mer-qt/qtmultimedia,mer-qt/qtmultimedia,mer-qt/qtmultimedia,mer-qt/qtmultimedia