dt-bindings: reset: mediatek: add MT7988 ethwarp reset IDs

Add reset ID for ethwarp subsystem allowing to reset the built-in
Ethernet switch of the MediaTek MT7988 SoC.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/0c14bbacf471683af67ffa7572bfa1d5c45a0b5d.1702849494.git.daniel@makrotopia.orgSigned-off-by: Stephen Boyd <sboyd@kernel.org>

include/dt-bindings/reset/mediatek,mt7988-resets.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2023 Daniel Golle <daniel@makrotopia.org>
+ * Author: Daniel Golle <daniel@makrotopia.org>
+ */
+
+#ifndef _DT_BINDINGS_RESET_CONTROLLER_MT7988
+#define _DT_BINDINGS_RESET_CONTROLLER_MT7988
+
+/* ETHWARP resets */
+#define MT7988_ETHWARP_RST_SWITCH		0
+
+#endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT7988 */