feat: remove waiter list notification from FFA_RXTX_MAP ABI

FF-A v1.1 doesn't specify anymore the RX buffer waiter list and
conflicts with FFA_RXTX_MAP forwarding to SPMC; remove the
waiter list notification and the related test
(mailbox, secondary_to_primary_notification_on_configure).

Change-Id: I82cc9ed2877d68fd055984a4f6dc9a9109260c07
Signed-off-by: Federico Recanati <federico.recanati@arm.com>
diff --git a/src/arch/aarch64/hypervisor/handler.c b/src/arch/aarch64/hypervisor/handler.c
index 9323ff5..bc141c2 100644
--- a/src/arch/aarch64/hypervisor/handler.c
+++ b/src/arch/aarch64/hypervisor/handler.c
@@ -502,7 +502,7 @@
 	case FFA_RXTX_MAP_64:
 		*args = api_ffa_rxtx_map(ipa_init(args->arg1),
 					 ipa_init(args->arg2), args->arg3,
-					 current, next);
+					 current);
 		return true;
 	case FFA_RXTX_UNMAP_32:
 		*args = api_ffa_rxtx_unmap(args->arg1, current);