device: update the address type in nm_device_hw_addr_set_cloned()

Commit 029a0a21ea ("device: split out cloned MAC decision from
nm_device_hw_addr_set_cloned()") accidentally removed the assignment
of the new device @hw_addr_type, which then was left to
HW_ADDR_TYPE_UNSET. As a consequence, we never restored the initial
MAC address when the connection was deactivated. Fix this.

Fixes: 029a0a21ea
(cherry picked from commit 166988264f)

src/devices/nm-device.c

@@ -13358,8 +13358,10 @@ nm_device_hw_addr_set_cloned (NMDevice *self, NMConnection *connection, gboolean
 	if (preserve)
 		return nm_device_hw_addr_reset (self, detail);
 
-	if (hwaddr)
+	if (hwaddr) {
+		priv->hw_addr_type = type;
 		return _hw_addr_set (self, hwaddr, "set-cloned", detail);
+	}
 
 	return TRUE;
 }