libsepol: include necessary headers in headers

Include policydb header file required for typedef policydb_t.

This is for example helpful when working with an IDE, which needs to
resolve those symbols.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Acked-by: James Carter <jwcart2@gmail.com>

libsepol/include/sepol/policydb/util.h

@@ -23,6 +23,8 @@
 #ifndef __SEPOL_UTIL_H__
 #define __SEPOL_UTIL_H__
 
+#include <sepol/policydb/policydb.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif

libsepol/src/mls.h

@@ -25,6 +25,7 @@
 
 #include "policydb_internal.h"
 #include <sepol/policydb/context.h>
+#include <sepol/policydb/policydb.h>
 #include "handle.h"
 
 extern int mls_from_string(sepol_handle_t * handle,