Merge FreeBSD locking fixes (bug #1411)

acl.c

apps/app_intercom.c

apps/app_meetme.c

apps/app_queue.c

apps/app_voicemail.c

asterisk.c

astmm.c

autoservice.c

cdr.c

cdr/cdr_odbc.c

cdr/cdr_pgsql.c

channel.c

channels/chan_agent.c

channels/chan_alsa.c

channels/chan_h323.c

channels/chan_iax.c

channels/chan_iax2.c

channels/chan_local.c

channels/chan_mgcp.c

channels/chan_modem.c