Build: Align service version convention to PSA FF 1.0

Replace minor_version by version field
Replace minor_policy by version_policy field

Change-Id: I51b6f35fa4e5b529188168b7e99765a4add1cc47
Signed-off-by: Jaykumar Pitambarbhai Patel <jay08ec71@yahoo.com>
diff --git a/interface/include/tfm_mailbox.h b/interface/include/tfm_mailbox.h
index f6bdae4..2c0ccc5 100644
--- a/interface/include/tfm_mailbox.h
+++ b/interface/include/tfm_mailbox.h
@@ -54,7 +54,7 @@
 
         struct {
             uint32_t        sid;
-            uint32_t        minor_version;
+            uint32_t        version;
         } psa_connect_params;
 
         struct {