Remove osmo-iuh subdir level from include/ (2/2)

Make all changes to #include statements and build files.
diff --git a/include/osmocom/hnbap/IMSIESN.h b/include/osmocom/hnbap/IMSIESN.h
index f81ecb9..e68989a 100644
--- a/include/osmocom/hnbap/IMSIESN.h
+++ b/include/osmocom/hnbap/IMSIESN.h
@@ -12,8 +12,8 @@
 #include <asn_application.h>
 
 /* Including external dependencies */
-#include <osmocom/osmo-iuh/hnbap/IMSIDS41.h>
-#include <osmocom/osmo-iuh/hnbap/ESN.h>
+#include <osmocom/hnbap/IMSIDS41.h>
+#include <osmocom/hnbap/ESN.h>
 #include <constr_SEQUENCE.h>
 
 #ifdef __cplusplus