eth,mp2t: Rename ei[] filter names duplicating hf[] filter names.

Change-Id: I1a9e8344866ce5a5bbd48b07c49baa398ce161f7
Reviewed-on: https://code.wireshark.org/review/5724
Reviewed-by: Bill Meier <wmeier@newsguy.com>
(cherry picked from commit 425bc304fea88e8136c69d282547fba502b28708)
Reviewed-on: https://code.wireshark.org/review/5840