static checker: e1000-82540em got aliased to e1000

Commit 83044020 changed the name of the
e1000-82540em device to e1000.  This was flagged:

   Section "e1000-82540em" does not exist in dest

Add the mapping to the changed section names dictionary so the checker
can proceed.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Acked-by: NJason Wang <jasowang@redhat.com>
Message-Id: <7ccfe834c897142dceaa4da87c13b7059fa12aa8.1450416947.git.amit.shah@redhat.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>

scripts/vmstate-static-checker.py

@@ -99,6 +99,7 @@ def get_changed_sec_name(sec):
     # Section names can change -- see commit 292b1634 for an example.
     changes = {
         "ICH9 LPC": "ICH9-LPC",
+        "e1000-82540em": "e1000",
     }
 
     for item in changes: