QmlDesigner: fixing .pro file for mac

The relative path is not correct on Mac for deployed packages.

Change-Id: I379f3d986df118495763811617ffe1a2cfe623ec
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pro

@@ -9,4 +9,4 @@ build_all:!build_pass {
     CONFIG += release
 }
 
-include(../../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pri)
+include(qml2puppet.pri)