Update qbs submodule to HEAD of 1.2 branch.
Update qbs submodule to HEAD of 1.2 branch.

Change-Id: I5cd40bd819c799838cde82a60037bbe3762e166d
Reviewed-by: Joerg Bornemann <47777b9406dbddd02a3fdca8341789a013805a11@digia.com>

xianian/qt-creator,kuba1/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,danimo/qt-creator,xianian/qt-creator,farseerri/git_code,AltarBeastiful/qt-creator,farseerri/git_code,amyvmiwei/qt-creator,danimo/qt-creator,farseerri/git_code,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,kuba1/qtcreator,danimo/qt-creator,kuba1/qtcreator,farseerri/git_code,farseerri/git_code,farseerri/git_code,amyvmiwei/qt-creator,omniacreator/qtcreator,kuba1/qtcreator,maui-packages/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,colede/qtcreator,colede/qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,maui-packages/qt-creator,omniacreator/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,farseerri/git_code,colede/qtcreator,xianian/qt-creator,AltarBeastiful/qt-creator,xianian/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,maui-packages/qt-creator,danimo/qt-creator,colede/qtcreator,colede/qtcreator,Distrotech/qtcreator,AltarBeastiful/qt-creator,kuba1/qtcreator,kuba1/qtcreator,xianian/qt-creator,danimo/qt-creator,omniacreator/qtcreator,colede/qtcreator,kuba1/qtcreator,AltarBeastiful/qt-creator,kuba1/qtcreator,Distrotech/qtcreator,kuba1/qtcreator,omniacreator/qtcreator,Distrotech/qtcreator,amyvmiwei/qt-creator,xianian/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,omniacreator/qtcreator,Distrotech/qtcreator,farseerri/git_code,xianian/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,colede/qtcreator,danimo/qt-creator,maui-packages/qt-creator