Improve NITB config template.

Introduces a multiple file template and iterates over the defined
BTS array from the hiera data.

This is really a backport of the as yet uncommitted work on creating osmo-*
config files for the split stack. Making this change here for the nitb will
allow for removal for some deprecated variables in hiera.

At this time, I don't think there is any site that is actually using
a puppet-generated nitb config file, but if there were, the results of this code
should be more less funcionally equivalent, providing the BTS definition is correct.

modules/rhizo_base/templates/osmo-nitb-bts.erb

@@ -0,0 +1,101 @@
+<% @bts.each_with_index do |bts, index| -%>
+ bts <%= index %>
+  type <%= bts["type"] %>
+  description <%= bts["name"] %>
+  band <%= bts["band"] %>
+  cell_identity <%= index %>
+  location_area_code <%= bts["lac"] %>
+  base_station_id_code <%= bts["bsic"] %>
+  ms max power <%= bts["ms_maxp"] %>
+  cell reselection hysteresis 14
+  rxlev access min 0
+  periodic location update 30
+  radio-link-timeout 32
+  channel allocator ascending
+  rach tx integer 9
+  rach max transmission 7
+  channel-descrption attach 1
+  channel-descrption bs-pa-mfrms 5
+  channel-descrption bs-ag-blks-res 1
+  rach emergency call allowed 1
+  no access-control-class-ramping
+  access-control-class-ramping-step-interval dynamic
+  access-control-class-ramping-step-size 1
+  early-classmark-sending forbidden
+  early-classmark-sending-3g allowed
+  ip.access unit_id 1000 <%= bts["uid"] %>
+  oml ip.access stream_id 255 line 0
+  neighbor-list mode automatic
+  codec-support fr amr
+  amr tch-f modes 4 5
+  amr tch-f start-mode 1
+  amr tch-h modes 4 5
+  amr tch-h start-mode 1
+  gprs mode <%= bts["gprs_m"] %>
+  gprs 11bit_rach_support_for_egprs 0
+  gprs routing area 21
+  gprs network-control-order nc0
+  gprs cell bvci <%= index+2 %>
+  gprs cell timer blocking-timer 3
+  gprs cell timer blocking-retries 3
+  gprs cell timer unblocking-retries 3
+  gprs cell timer reset-timer 3
+  gprs cell timer reset-retries 3
+  gprs cell timer suspend-timer 10
+  gprs cell timer suspend-retries 3
+  gprs cell timer resume-timer 10
+  gprs cell timer resume-retries 3
+  gprs cell timer capability-update-timer 10
+  gprs cell timer capability-update-retries 3
+  gprs nsei 10<%= index+2 %>
+  gprs ns timer tns-block 3
+  gprs ns timer tns-block-retries 3
+  gprs ns timer tns-reset 3
+  gprs ns timer tns-reset-retries 3
+  gprs ns timer tns-test 30
+  gprs ns timer tns-alive 3
+  gprs ns timer tns-alive-retries 10
+  gprs nsvc 0 nsvci 10<%= index+2 %>
+  gprs nsvc 0 local udp port 23<%= bts["lac"] %>
+  gprs nsvc 0 remote udp port 23001
+  gprs nsvc 0 remote ip <%= @sgsn_ip_address %>
+  gprs nsvc 1 nsvci 0
+  gprs nsvc 1 local udp port 0
+  gprs nsvc 1 remote udp port 0
+  gprs nsvc 1 remote ip 0.0.0.0
+  no force-combined-si
+<% if bts["model"] == "2050S" %>  depends-on-bts <%= index-1 %>
+<% end -%>
+<% bts["trx"].each_with_index do |trx, index| -%>
+  trx <%= index %>
+   rf_locked 0
+   arfcn <%= trx["chan"] %>
+   nominal power <%= bts["nom"] %>
+   max_power_red <%= bts["red"] %>
+   rsl e1 tei 0
+   timeslot 0
+    phys_chan_config CCCH
+    hopping enabled 0
+   timeslot 1
+    phys_chan_config <%= @phys_chan %>
+    hopping enabled 0
+   timeslot 2
+    phys_chan_config <%= @phys_chan %>
+    hopping enabled 0
+   timeslot 3
+    phys_chan_config <%= @phys_chan %>
+    hopping enabled 0
+   timeslot 4
+    phys_chan_config <%= @phys_chan %>
+    hopping enabled 0
+   timeslot 5
+    phys_chan_config <%= @phys_chan %>
+    hopping enabled 0
+   timeslot 6
+    phys_chan_config TCH/F_TCH/H_PDCH
+    hopping enabled 0
+   timeslot 7
+    phys_chan_config PDCH
+    hopping enabled 0
+<% end -%>
+<% end -%>