mac-lte: Rename expert filter name to fix conflict with same name in hf[]

Change-Id: I906a195b3c6a1e68f273decc9c443a233af4f9be
Reviewed-on: https://code.wireshark.org/review/5609
Reviewed-by: Bill Meier <wmeier@newsguy.com>
(cherry picked from commit f8c0bff6b813698be87ef0d407bbd0c2f2fa357b)
Reviewed-on: https://code.wireshark.org/review/5611