hsl: use include/abis/ipaccess.h

instead of deprecated include/gsm/protocol/ipaccess.h
diff --git a/src/input/hsl.c b/src/input/hsl.c
index 97475cf..068989b 100644
--- a/src/input/hsl.c
+++ b/src/input/hsl.c
@@ -49,7 +49,7 @@
 #include <osmocom/core/msgb.h>
 #include <osmocom/abis/e1_input.h>
 #include <osmocom/core/logging.h>
-#include <osmocom/gsm/protocol/ipaccess.h>
+#include <osmocom/abis/ipaccess.h>
 #include <osmocom/core/socket.h>
 #include <talloc.h>