Revert "HACK: disable NM_ATTR for CELL GLOBAL ID for sysmo-bts"

This reverts commit 8b65ab9d9133efe53a058733d492ac0595040fb4, which
should never have been committed to master.  In fact, it is not even
needed anymore with recent osmo-bts code.
diff --git a/openbsc/src/libbsc/bts_ipaccess_nanobts.c b/openbsc/src/libbsc/bts_ipaccess_nanobts.c
index 1510048..e756f2a 100644
--- a/openbsc/src/libbsc/bts_ipaccess_nanobts.c
+++ b/openbsc/src/libbsc/bts_ipaccess_nanobts.c
@@ -101,7 +101,7 @@
 	NM_ATT_NY1, 10, /* 10 retransmissions of physical config */
 	NM_ATT_BCCH_ARFCN, HARDCODED_ARFCN >> 8, HARDCODED_ARFCN & 0xff,
 	NM_ATT_BSIC, HARDCODED_BSIC,
-	//NM_ATT_IPACC_CGI, 0, 7,  0x00, 0xf1, 0x10, 0x00, 0x01, 0x00, 0x00,
+	NM_ATT_IPACC_CGI, 0, 7,  0x00, 0xf1, 0x10, 0x00, 0x01, 0x00, 0x00,
 };
 
 static unsigned char nanobts_attr_radio[] = {
@@ -210,7 +210,7 @@
 	nanobts_attr_bts[sizeof(nanobts_attr_bts)-11] = bts->bsic;
 
 	/* patch CGI */
-	//abis_nm_ipaccess_cgi(nanobts_attr_bts+sizeof(nanobts_attr_bts)-7, bts);
+	abis_nm_ipaccess_cgi(nanobts_attr_bts+sizeof(nanobts_attr_bts)-7, bts);
 
 	/* patch the power reduction */
 	nanobts_attr_radio[1] = bts->c0->max_power_red / 2;