feat(rmm): update API of RSI_IPA_STATE_SET command

This patch makes the changes listed below:
- API of RSI_IPA_STATE_SET command is updated as
  per RMM Specification 1.0-eac2 by adding "flags"
  parameter passed in X4;
- Added "change_destroyed" member in "set_ripas"
  structure;
- Removed *rtt_level parameter of realm_ipa_get_ripas()
  function, which now returns WALK_FAIL if
  the entry does not have a valid ripas value.
- Function handle_rsi_ipa_state_get() always
  returns to Realm for all cases of ripas values,
  including RIPAS_DESTROYED.

Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
Change-Id: I60d9be4aba17819ccd4af69dc8c19434f3b13ae2
diff --git a/lib/realm/include/rec.h b/lib/realm/include/rec.h
index 34cc31b..6b5b6a2 100644
--- a/lib/realm/include/rec.h
+++ b/lib/realm/include/rec.h
@@ -166,6 +166,7 @@
 		unsigned long top;
 		unsigned long addr;
 		enum ripas ripas_val;
+		enum ripas_change_destroyed change_destroyed;
 	} set_ripas;
 
 	/*