AuditLog: Additional API primitives

-- Add two additional API's to compute the log size
   and remove log items.
-- Amend the log retrieval API to allow specifying
   the index from where to start reading items from
   the log.

Change-Id: Ifdc267806f8b73d4548418f6f632df4a4a376038
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
diff --git a/interface/include/tfm_ns_svc.h b/interface/include/tfm_ns_svc.h
index 2102060..2788759 100644
--- a/interface/include/tfm_ns_svc.h
+++ b/interface/include/tfm_ns_svc.h
@@ -47,7 +47,9 @@
     X(SVC_TFM_SST_READ, tfm_sst_svc_read) \
     X(SVC_TFM_SST_WRITE, tfm_sst_svc_write) \
     X(SVC_TFM_SST_DELETE, tfm_sst_svc_delete) \
-    X(SVC_TFM_LOG_RETRIEVE, tfm_log_svc_retrieve)
+    X(SVC_TFM_LOG_RETRIEVE, tfm_log_svc_retrieve) \
+    X(SVC_TFM_LOG_GET_INFO, tfm_log_svc_get_info) \
+    X(SVC_TFM_LOG_DELETE_ITEMS, tfm_log_svc_delete_items)
 
 /**
  * \def LIST_SVC_CORE_TEST_INTERACTIVE