Enable extra EGL debugging

Signed-off-by: Carsten Munk <carsten.munk@jollamobile.com>
configure: Allow for sb2 acceleration of qmake.

Change-Id: I277e0316aefdd21947574a365772eafe5a3ad1d7
[packaging] enable qt build acceleration

Signed-off-by: Carsten Munk <carsten.munk@jollamobile.com>