arm64: dts: colibri-imx8x: Add aster carrier board

Add the Toradex Aster Carrier Board for Colibri iMX8X, small form-factor
with header compatible with Arduino Uno and Raspberry Pi (RPi) maker
boards.

Additional details available at:
https://www.toradex.com/products/carrier-boards/aster-carrier-boardSigned-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/Makefile

@@ -129,6 +129,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qm-apalis-v1.1-ixora-v1.1.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qm-apalis-v1.1-ixora-v1.2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qm-mek.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-ai_ml.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-aster.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-eval-v3.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb

arch/arm64/boot/dts/freescale/imx8qxp-colibri-aster.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2018-2021 Toradex
+ */
+
+/dts-v1/;
+
+#include "imx8qxp-colibri.dtsi"
+#include "imx8x-colibri-aster.dtsi"
+
+/ {
+	model = "Toradex Colibri iMX8QXP on Aster Board";
+	compatible = "toradex,colibri-imx8x-aster",
+		     "toradex,colibri-imx8x",
+		     "fsl,imx8qxp";
+};

arch/arm64/boot/dts/freescale/imx8x-colibri-aster.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2018-2021 Toradex
+ */
+
+&colibri_gpio_keys {
+	status = "okay";
+};
+
+/* Colibri Ethernet */
+&fec1 {
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog0>;
+};
+
+/* Colibri SPI */
+&lpspi2 {
+	cs-gpios = <&lsio_gpio1 0 GPIO_ACTIVE_LOW>,
+		   <&lsio_gpio5 2 GPIO_ACTIVE_LOW>;
+};
+
+/* Colibri UART_B */
+&lpuart0 {
+	status = "okay";
+};
+
+/* Colibri UART_C */
+&lpuart2 {
+	status = "okay";
+};
+
+/* Colibri UART_A */
+&lpuart3 {
+	status= "okay";
+};
+
+/* Colibri SDCard */
+&usdhc2 {
+	status = "okay";
+};