There have been some changes in the wireshark source code that have
never been submitted to gsmtap.h
GSMTAP_CHANNEL_PACCH has been defined in an incompatible way in mainline
wirshark :(
This patch moves all GSM-specific definitions to include/osmocom/gsm.
Moreover, the headers in include/osmocore/ have been moved to
include/osmocom/core.
This has been proposed by Harald Welte and Sylvain Munaunt.
Tested with `make distcheck'.
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>