libosmogsm.map: fix typo

Change-Id: I71413fbe703e459782a235e5b1d8487265de3780
Related: OS#1615
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 3d1413d..7398c16 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -26,7 +26,7 @@
 abis_nm_test_name;
 abis_nm_osmo_magic;
 abis_nm_ipa_magic;
-abis_nm_event_cause_names;
+abis_mm_event_cause_names;
 abis_nm_pcause_type_names;
 
 osmo_sitype_strs;