Intoduce Packet Switch CGI

This structure is needed in order to identify a given cell within the
BSS during RIM transactions.
The naming was made up by myself since I couldn't find any naming
reference for this kind of data (RAI + CI).
Since LAI + CI = CGI, then RAI + CI = CGI-PS

osmo_rai_name2 family of functions get a "2" suffix due to already
existing functions handling struct struct gprs_ra_id in gsm48.h

Change-Id: If48f412c32e8e5a3e604a78d12b74787a4786374
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index bcded1c..eceb1c1 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -412,10 +412,17 @@
 osmo_rai_name;
 osmo_rai_name_buf;
 osmo_rai_name_c;
+osmo_rai_name2;
+osmo_rai_name2_buf;
+osmo_rai_name2_c;
 osmo_cgi_name;
 osmo_cgi_name_buf;
 osmo_cgi_name_c;
 osmo_cgi_name2;
+osmo_cgi_ps_name;
+osmo_cgi_ps_name_buf;
+osmo_cgi_ps_name_c;
+osmo_cgi_ps_name2;
 osmo_gummei_name;
 osmo_gummei_name_buf;
 osmo_gummei_name_c;