Don't modify the FID when forwarding SMCs.

If the VM called as 32-bit, it should be forwarded as such. The same
goes for 64-bit. The causes problems when the target doesn't accept both
versions.

Change-Id: I229b489030bf84a0093254acda224645746600e0
diff --git a/src/arch/aarch64/hypervisor/handler.c b/src/arch/aarch64/hypervisor/handler.c
index 0658051..4f4ec44 100644
--- a/src/arch/aarch64/hypervisor/handler.c
+++ b/src/arch/aarch64/hypervisor/handler.c
@@ -263,9 +263,9 @@
 	uint32_t client_id = vcpu->vm->id;
 
 	if (smc_check_client_privileges(vcpu)) {
-		*ret = smc64(func, vcpu->regs.r[1], vcpu->regs.r[2],
-			     vcpu->regs.r[3], vcpu->regs.r[4], vcpu->regs.r[5],
-			     vcpu->regs.r[6], client_id);
+		*ret = smc_forward(func, vcpu->regs.r[1], vcpu->regs.r[2],
+				   vcpu->regs.r[3], vcpu->regs.r[4],
+				   vcpu->regs.r[5], vcpu->regs.r[6], client_id);
 		return true;
 	}