binman: Drop Entry.CheckOffset()

This function just calls CheckEntries() in the only non-trivial
implementation. Drop it and use CheckEntries() directly.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/binman/entry.py

@@ -520,7 +520,7 @@ class Entry(object):
         """
         pass
 
-    def CheckOffset(self):
+    def CheckEntries(self):
         """Check that the entry offsets are correct
 
         This is used for entries which have extra offset requirements (other