Fix qt.sis platform dependencies for Symbian^3 builds.

Symbian^3 build of qt.sis is not compatible with pre-Symbian^3
devices, so remove the platform dependencies to said devices.

Task-number: QTBUG-17150
Reviewed-by: Janne Koskinen

src/s60installs/s60installs.pro

@@ -77,13 +77,19 @@ symbian: {
             "ENDIF" \
             "   \"$$bearerStubZ\" - \"c:$$replace(QT_PLUGINS_BASE_DIR,/,\\)\\bearer\\qsymbianbearer$${QT_LIBINFIX}.qtplugin\"
     } else {
+        # Restrict deployment to Symbian3 and later platforms
+        default_deployment.pkg_prerules -= pkg_platform_dependencies
+        platform_dependency_rules.pkg_prerules = \
+            "[0x20022E6D],0,0,0,{\"S60ProductID\"}" \
+            "[0x20032DE7],0,0,0,{\"S60ProductID\"}"
+
         # No need to deploy plugins for older platform versions when building on Symbian3 or later
         qts60plugindeployment = \
             "   \"$$pluginLocations/qts60plugin_5_0$${QT_LIBINFIX}.dll\" - \"c:\\sys\\bin\\qts60plugin_5_0$${QT_LIBINFIX}.dll\""
 
         bearer_plugin.sources = $$QT_BUILD_TREE/plugins/bearer/qsymbianbearer$${QT_LIBINFIX}.dll
         bearer_plugin.path = c:$$QT_PLUGINS_BASE_DIR/bearer
-        DEPLOYMENT += bearer_plugin
+        DEPLOYMENT += bearer_plugin platform_dependency_rules
     }
 
     qtlibraries.pkg_postrules += qts60plugindeployment
@@ -183,10 +189,6 @@ symbian: {
     contains(QT_CONFIG, openvg) {
         qtlibraries.sources += $$QMAKE_LIBDIR_QT/QtOpenVG$${QT_LIBINFIX}.dll
         graphicssystems_plugins.sources += $$QT_BUILD_TREE/plugins/graphicssystems/qvggraphicssystem$${QT_LIBINFIX}.dll
-        # OpenVG requires Symbian^3 or later
-        pkg_platform_dependencies = \
-            "[0x20022E6D],0,0,0,{\"S60ProductID\"}" \
-            "[0x20032DE7],0,0,0,{\"S60ProductID\"}"
     }
 
     contains(QT_CONFIG, opengl) {