ObserverTool: Fix Qt dependencies
ObserverTool: Fix Qt dependencies

QmlObserver requires 4.7.1, not 4.7.2.

azat/qtcreator,colede/qtcreator,kuba1/qtcreator,amyvmiwei/qt-creator,syntheticpp/qt-creator,omniacreator/qtcreator,dmik/qt-creator-os2,richardmg/qtcreator,farseerri/git_code,duythanhphan/qt-creator,malikcjm/qtcreator,bakaiadam/collaborative_qt_creator,omniacreator/qtcreator,azat/qtcreator,duythanhphan/qt-creator,danimo/qt-creator,ostash/qt-creator-i18n-uk,darksylinc/qt-creator,maui-packages/qt-creator,AltarBeastiful/qt-creator,richardmg/qtcreator,hdweiss/qt-creator-visualizer,danimo/qt-creator,amyvmiwei/qt-creator,ostash/qt-creator-i18n-uk,KDE/android-qt-creator,maui-packages/qt-creator,xianian/qt-creator,KDE/android-qt-creator,danimo/qt-creator,bakaiadam/collaborative_qt_creator,danimo/qt-creator,azat/qtcreator,richardmg/qtcreator,martyone/sailfish-qtcreator,dmik/qt-creator-os2,ostash/qt-creator-i18n-uk,xianian/qt-creator,colede/qtcreator,Distrotech/qtcreator,dmik/qt-creator-os2,KDE/android-qt-creator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,kuba1/qtcreator,duythanhphan/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,colede/qtcreator,jonnor/qt-creator,duythanhphan/qt-creator,KDAB/KDAB-Creator,amyvmiwei/qt-creator,AltarBeastiful/qt-creator,Distrotech/qtcreator,Distrotech/qtcreator,darksylinc/qt-creator,syntheticpp/qt-creator,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,kuba1/qtcreator,kuba1/qtcreator,renatofilho/QtCreator,malikcjm/qtcreator,xianian/qt-creator,darksylinc/qt-creator,KDE/android-qt-creator,AltarBeastiful/qt-creator,darksylinc/qt-creator,danimo/qt-creator,AltarBeastiful/qt-creator,syntheticpp/qt-creator,KDE/android-qt-creator,Distrotech/qtcreator,jonnor/qt-creator,hdweiss/qt-creator-visualizer,richardmg/qtcreator,dmik/qt-creator-os2,colede/qtcreator,jonnor/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,richardmg/qtcreator,ostash/qt-creator-i18n-uk,omniacreator/qtcreator,Distrotech/qtcreator,hdweiss/qt-creator-visualizer,farseerri/git_code,pcacjr/qt-creator,renatofilho/QtCreator,malikcjm/qtcreator,syntheticpp/qt-creator,pcacjr/qt-creator,KDE/android-qt-creator,richardmg/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,kuba1/qtcreator,hdweiss/qt-creator-visualizer,martyone/sailfish-qtcreator,maui-packages/qt-creator,omniacreator/qtcreator,jonnor/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,farseerri/git_code,farseerri/git_code,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,dmik/qt-creator-os2,danimo/qt-creator,syntheticpp/qt-creator,duythanhphan/qt-creator,colede/qtcreator,martyone/sailfish-qtcreator,ostash/qt-creator-i18n-uk,amyvmiwei/qt-creator,Distrotech/qtcreator,azat/qtcreator,KDAB/KDAB-Creator,farseerri/git_code,renatofilho/QtCreator,xianian/qt-creator,danimo/qt-creator,dmik/qt-creator-os2,syntheticpp/qt-creator,xianian/qt-creator,Distrotech/qtcreator,colede/qtcreator,colede/qtcreator,azat/qtcreator,malikcjm/qtcreator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,renatofilho/QtCreator,pcacjr/qt-creator,pcacjr/qt-creator,bakaiadam/collaborative_qt_creator,kuba1/qtcreator,farseerri/git_code,xianian/qt-creator,maui-packages/qt-creator,renatofilho/QtCreator,KDE/android-qt-creator,martyone/sailfish-qtcreator,darksylinc/qt-creator,malikcjm/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,ostash/qt-creator-i18n-uk,pcacjr/qt-creator,AltarBeastiful/qt-creator,pcacjr/qt-creator,KDAB/KDAB-Creator,jonnor/qt-creator,duythanhphan/qt-creator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,maui-packages/qt-creator,KDAB/KDAB-Creator,maui-packages/qt-creator,farseerri/git_code,amyvmiwei/qt-creator,renatofilho/QtCreator,richardmg/qtcreator,KDAB/KDAB-Creator,jonnor/qt-creator,KDE/android-qt-creator,omniacreator/qtcreator,bakaiadam/collaborative_qt_creator,xianian/qt-creator,hdweiss/qt-creator-visualizer,danimo/qt-creator,duythanhphan/qt-creator,malikcjm/qtcreator,dmik/qt-creator-os2,amyvmiwei/qt-creator,bakaiadam/collaborative_qt_creator,kuba1/qtcreator,kuba1/qtcreator,syntheticpp/qt-creator,omniacreator/qtcreator,kuba1/qtcreator,malikcjm/qtcreator,azat/qtcreator,hdweiss/qt-creator-visualizer,farseerri/git_code,AltarBeastiful/qt-creator,pcacjr/qt-creator