add an example config file for nanoBTS multi-trx case
diff --git a/openbsc/src/openbsc.cfg.nanobts.multitrx b/openbsc/src/openbsc.cfg.nanobts.multitrx
new file mode 100644
index 0000000..2bd6e3f
--- /dev/null
+++ b/openbsc/src/openbsc.cfg.nanobts.multitrx
@@ -0,0 +1,97 @@
+!
+! OpenBSC configuration saved from vty
+! !
+password foo
+!
+line vty
+ no login
+!
+network
+ network country code 1
+ mobile network code 1
+ short name OpenBSC
+ long name OpenBSC
+ auth policy closed
+ location updating reject cause 13
+ encryption a5 0
+ neci 0
+ rrlp mode none
+ mm info 0
+ handover 0
+ handover window rxlev averaging 10
+ handover window rxqual averaging 1
+ handover window rxlev neighbor averaging 10
+ handover power budget interval 6
+ handover power budget hysteresis 3
+ handover maximum distance 9999
+ timer t3101 10
+ timer t3103 0
+ timer t3105 0
+ timer t3107 0
+ timer t3109 0
+ timer t3111 0
+ timer t3113 60
+ timer t3115 0
+ timer t3117 0
+ timer t3119 0
+ timer t3141 0
+ bts 0
+ type nanobts
+ band DCS1800
+ cell_identity 0
+ location_area_code 1
+ training_sequence_code 7
+ base_station_id_code 63
+ ms max power 15
+ cell reselection hysteresis 4
+ rxlev access min 0
+ channel allocator ascending
+ rach tx integer 9
+ rach max transmission 7
+ ip.access unit_id 1800 0
+ oml ip.access stream_id 255
+ gprs enabled 0
+ trx 0
+ rf_locked 0
+ arfcn 871
+ nominal power 23
+ max_power_red 0
+ rsl e1 tei 0
+ timeslot 0
+ phys_chan_config CCCH+SDCCH4
+ timeslot 1
+ phys_chan_config SDCCH8
+ timeslot 2
+ phys_chan_config TCH/F
+ timeslot 3
+ phys_chan_config TCH/F
+ timeslot 4
+ phys_chan_config TCH/F
+ timeslot 5
+ phys_chan_config TCH/F
+ timeslot 6
+ phys_chan_config TCH/F
+ timeslot 7
+ phys_chan_config TCH/F
+ trx 1
+ rf_locked 0
+ arfcn 873
+ nominal power 23
+ max_power_red 0
+ rsl e1 tei 0
+ timeslot 0
+ phys_chan_config CCCH+SDCCH4
+ timeslot 1
+ phys_chan_config SDCCH8
+ timeslot 2
+ phys_chan_config TCH/F
+ timeslot 3
+ phys_chan_config TCH/F
+ timeslot 4
+ phys_chan_config TCH/F
+ timeslot 5
+ phys_chan_config TCH/F
+ timeslot 6
+ phys_chan_config TCH/F
+ timeslot 7
+ phys_chan_config TCH/F