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

Make all changes to #include statements and build files.
diff --git a/src/ranap/RANAP_UTRAN-CellID.c b/src/ranap/RANAP_UTRAN-CellID.c
index 1dea73b..8735f20 100644
--- a/src/ranap/RANAP_UTRAN-CellID.c
+++ b/src/ranap/RANAP_UTRAN-CellID.c
@@ -4,7 +4,7 @@
  * 	found in "../../asn1/ranap/RANAP-IEs.asn"
  */
 
-#include <osmocom/osmo-iuh/ranap/RANAP_UTRAN-CellID.h>
+#include <osmocom/ranap/RANAP_UTRAN-CellID.h>
 
 static asn_TYPE_member_t asn_MBR_RANAP_UTRAN_CellID_1[] = {
 	{ ATF_NOFLAGS, 0, offsetof(struct RANAP_UTRAN_CellID, pLMNidentity),