dt-bindings: power: add defines for i.MX8MP power domain

This adds the DT defines for the GPC power domains found on the
i.MX8MP SoC.

Signed-off-by: Lucas Stach <[e-mail]>
Acked-by: Rob Herring <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml

···
       - fsl,imx8mn-gpc
       - fsl,imx8mq-gpc
       - fsl,imx8mm-gpc
+      - fsl,imx8mp-gpc
 
   reg:
     maxItems: 1
···
               include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
               include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
               include/dt-bindings/power/imx8mm-power.h for fsl,imx8mm-gpc
+              include/dt-bindings/power/imx8mp-power.h for fsl,imx8mp-gpc
             maxItems: 1
 
           clocks:

include/dt-bindings/power/imx8mp-power.h

···
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ *  Copyright (C) 2020 Pengutronix, Sascha Hauer <[e-mail]>
+ */
+
+#ifndef __DT_BINDINGS_IMX8MP_POWER_DOMAIN_POWER_H__
+#define __DT_BINDINGS_IMX8MP_POWER_DOMAIN_POWER_H__
+
+#define IMX8MP_POWER_DOMAIN_MIPI_PHY1			0
+#define IMX8MP_POWER_DOMAIN_PCIE_PHY			1
+#define IMX8MP_POWER_DOMAIN_USB1_PHY			2
+#define IMX8MP_POWER_DOMAIN_USB2_PHY			3
+#define IMX8MP_POWER_DOMAIN_MLMIX			4
+#define IMX8MP_POWER_DOMAIN_AUDIOMIX			5
+#define IMX8MP_POWER_DOMAIN_GPU2D			6
+#define IMX8MP_POWER_DOMAIN_GPUMIX			7
+#define IMX8MP_POWER_DOMAIN_VPUMIX			8
+#define IMX8MP_POWER_DOMAIN_GPU3D			9
+#define IMX8MP_POWER_DOMAIN_MEDIAMIX			10
+#define IMX8MP_POWER_DOMAIN_VPU_G1			11
+#define IMX8MP_POWER_DOMAIN_VPU_G2			12
+#define IMX8MP_POWER_DOMAIN_VPU_VC8000E			13
+#define IMX8MP_POWER_DOMAIN_HDMIMIX			14
+#define IMX8MP_POWER_DOMAIN_HDMI_PHY			15
+#define IMX8MP_POWER_DOMAIN_MIPI_PHY2			16
+#define IMX8MP_POWER_DOMAIN_HSIOMIX			17
+#define IMX8MP_POWER_DOMAIN_MEDIAMIX_ISPDWP		18
+
+#endif