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

Make all changes to #include statements and build files.
diff --git a/src/rua/RUA_CriticalityDiagnostics-IE-List.c b/src/rua/RUA_CriticalityDiagnostics-IE-List.c
index f707540..55e4657 100644
--- a/src/rua/RUA_CriticalityDiagnostics-IE-List.c
+++ b/src/rua/RUA_CriticalityDiagnostics-IE-List.c
@@ -4,7 +4,7 @@
  * 	found in "../../asn1/rua/RUA-IEs.asn"
  */
 
-#include <osmocom/osmo-iuh/rua/RUA_CriticalityDiagnostics-IE-List.h>
+#include <osmocom/rua/RUA_CriticalityDiagnostics-IE-List.h>
 
 static asn_per_constraints_t asn_PER_type_RUA_CriticalityDiagnostics_IE_List_constr_1 GCC_NOTUSED = {
 	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },