Fix typo in libosmocore.map

Fixes: 64ba9edf173cc16f9d94c94a423a8b7a5904efaf
Change-Id: I0fb13fb4ef8160f3ac2cb1cb4dd6ea57fd04b5be
diff --git a/src/core/libosmocore.map b/src/core/libosmocore.map
index 105a80a..6c02cd3 100644
--- a/src/core/libosmocore.map
+++ b/src/core/libosmocore.map
@@ -432,7 +432,7 @@
 osmo_sock_mcast_subscribe;
 osmo_sock_mcast_ttl_set;
 osmo_sock_multiaddr_add_local_addr;
-çosmo_sock_multiaddr_del_local_addr;
+osmo_sock_multiaddr_del_local_addr;
 osmo_sock_set_dscp;
 osmo_sock_set_priority;
 osmo_sock_unix_init;