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

Make all changes to #include statements and build files.
diff --git a/src/ranap/RANAP_Service-Handover.c b/src/ranap/RANAP_Service-Handover.c
index a9b17d5..2acae33 100644
--- a/src/ranap/RANAP_Service-Handover.c
+++ b/src/ranap/RANAP_Service-Handover.c
@@ -4,7 +4,7 @@
  * 	found in "../../asn1/ranap/RANAP-IEs.asn"
  */
 
-#include <osmocom/osmo-iuh/ranap/RANAP_Service-Handover.h>
+#include <osmocom/ranap/RANAP_Service-Handover.h>
 
 int
 RANAP_Service_Handover_constraint(asn_TYPE_descriptor_t *td, const void *sptr,