Pin to a working qtbase SHA1

A bug with qmake was introduced which is impeding the compilation of
modules we depend on. Use an older qtbase and qmake until this is fixed.

Task-number: QTBUG-24608
Change-Id: I7f6f1f383d4c9339e5f4c699cb8900a3b1c776e3
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>

sync.profile

@@ -31,7 +31,7 @@
 #   - any git symbolic ref resolvable from the module's repository (e.g. "refs/heads/master" to track master branch)
 #
 %dependencies = (
-        "qtbase" => "refs/heads/master",
+        "qtbase" => "95c5be8bc1c8f9ff8e7f95e52a8abd3cd7976ba1",
         "qtxmlpatterns" => "refs/heads/master",
         "qtjsbackend" => "refs/heads/master",
 );