GSMTAP channel types are not consistent with current Wireshark types,
which originate from libosmocore.
http://cgit.osmocom.org/cgit/libosmocore/tree/include/osmocom/core/gsmtap.h
The types may not have been supported in Wireshark at the previous time
of modification, however, they are now supported in mainline and popular
distributions.
Signed-off-by: Tom Tsou <tom@tsou.cc>
d2b84104f8