qcacld-3.0: Add correct header files in legacy code

After removing legacy policy manager header file had to add
correct header files from host common to allow the compilation
to happen successfully.

Change-Id: I566b8f09776520e8a43eb48cc944ce627dc0c5cf
CRs-Fixed: 2009818
diff --git a/core/sap/src/sap_module.c b/core/sap/src/sap_module.c
index d6301ba..9f7440b 100644
--- a/core/sap/src/sap_module.c
+++ b/core/sap/src/sap_module.c
@@ -55,6 +55,7 @@
 #include "cds_ieee80211_common_i.h"
 #include "cds_regdomain.h"
 #include "wlan_policy_mgr_api.h"
+#include <wlan_scan_ucfg_api.h>
 
 /*----------------------------------------------------------------------------
  * Preprocessor Definitions and Constants