feat(notifications): forward notification set to SPMC

Hypervisor forwards FFA_NOTIFICATION_SET to the SPMC, if receiver is an
SP.

Change-Id: I22ae458ee5906aaa728433f9d06a02dac66801d4
Signed-off-by: J-Alves <joao.alves@arm.com>
diff --git a/src/arch/fake/hypervisor/ffa.c b/src/arch/fake/hypervisor/ffa.c
index 78c384b..5dbdc34 100644
--- a/src/arch/fake/hypervisor/ffa.c
+++ b/src/arch/fake/hypervisor/ffa.c
@@ -159,6 +159,21 @@
 	return false;
 }
 
+bool plat_ffa_notification_set_forward(ffa_vm_id_t sender_vm_id,
+				       ffa_vm_id_t receiver_vm_id,
+				       uint32_t flags,
+				       ffa_notifications_bitmap_t bitmap,
+				       struct ffa_value *ret)
+{
+	(void)sender_vm_id;
+	(void)receiver_vm_id;
+	(void)flags;
+	(void)bitmap;
+	(void)ret;
+
+	return false;
+}
+
 struct ffa_value plat_ffa_notifications_bitmap_create(
 	ffa_vm_id_t vm_id, ffa_vcpu_count_t vcpu_count)
 {