Adds aditional symbols to allow dynamic linking.

--- a/src/libapparmor.map
+++ b/src/libapparmor.map
@@ -117,6 +117,7 @@
 
 APPARMOR_3.0 {
   global:
+	aa_features_new_from_file;
 	aa_features_write_to_fd;
 	aa_features_value;
   local:
@@ -130,6 +131,7 @@
 		_aa_autoclose;
 		_aa_autofclose;
 		_aa_dirat_for_each;
+		_aa_asprintf;
 	local:
 		*;
 };