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

Make all changes to #include statements and build files.
diff --git a/include/osmocom/ranap/RANAP_DataVolumeList.h b/include/osmocom/ranap/RANAP_DataVolumeList.h
index 83e0f87..459c2d5 100644
--- a/include/osmocom/ranap/RANAP_DataVolumeList.h
+++ b/include/osmocom/ranap/RANAP_DataVolumeList.h
@@ -12,9 +12,9 @@
 
 /* Including external dependencies */
 #include <asn_SEQUENCE_OF.h>
-#include <osmocom/osmo-iuh/ranap/RANAP_UnsuccessfullyTransmittedDataVolume.h>
-#include <osmocom/osmo-iuh/ranap/RANAP_DataVolumeReference.h>
-#include <osmocom/osmo-iuh/ranap/RANAP_ProtocolExtensionContainer.h>
+#include <osmocom/ranap/RANAP_UnsuccessfullyTransmittedDataVolume.h>
+#include <osmocom/ranap/RANAP_DataVolumeReference.h>
+#include <osmocom/ranap/RANAP_ProtocolExtensionContainer.h>
 #include <constr_SEQUENCE.h>
 #include <constr_SEQUENCE_OF.h>