Pin qtdeclarative to a version of qtbase that still contains QtV8

This is a temporary measure until the new qtjsbackend module is fully in
place.

Change-Id: I5cfe277ee6a14680f378dd4d4c0f94dfa56fbac3
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

sync.profile

@@ -112,6 +112,6 @@
 #   - 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" => "7aeccb183a827e8504d7dd8614d1ca555caf61d9",
         "qtxmlpatterns" => "refs/heads/master",
 );