imx: imx8mm: imx8mm-kontron-n801x-s: add common board u-boot.dtsi

When using a board variant that selects the lvds specific dtb the
*.u-boot.dtsi file will not be included. To have a lvds dtb specific
u-boot.dtsi file move this part to a common board u-boot.dtsi file and
include this in the board base u-boot.dtsi and create an additional one
for the lvds variant.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
diff --git a/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi b/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
index 22d18e6..4bf7572 100644
--- a/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
@@ -3,126 +3,4 @@
  * Copyright (C) 2019 Kontron Electronics GmbH
  */
 
-#include "imx8mm-u-boot.dtsi"
-
-/ {
-	aliases {
-		usb0 = &usbotg1;
-		usb1 = &usbotg2;
-	};
-
-	wdt-reboot {
-		compatible = "wdt-reboot";
-		wdt = <&wdog1>;
-		u-boot,dm-spl;
-	};
-
-	firmware {
-		optee {
-			compatible = "linaro,optee-tz";
-			method = "smc";
-		};
-	};
-};
-
-&fec1 {
-	phy-mode = "rgmii-rxid";
-};
-
-&i2c1 {
-	u-boot,dm-spl;
-	u-boot,dm-pre-reloc;
-};
-
-&i2c2 {
-	status = "okay";
-	u-boot,dm-spl;
-	u-boot,dm-pre-reloc;
-};
-
-&pinctrl_ecspi1 {
-	u-boot,dm-spl;
-};
-
-&pinctrl_i2c1 {
-	u-boot,dm-spl;
-};
-
-&pinctrl_pmic {
-	u-boot,dm-spl;
-	fsl,pins = <
-		MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0		0x141
-		/* Disable Pullup for SD_VSEL */
-		MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4		0x41
-	>;
-};
-
-&pinctrl_uart3 {
-	u-boot,dm-spl;
-	u-boot,dm-pre-reloc;
-};
-
-&pinctrl_usdhc1 {
-	u-boot,dm-spl;
-};
-
-&pinctrl_usdhc1_100mhz {
-	u-boot,dm-spl;
-};
-
-&pinctrl_usdhc1_200mhz {
-	u-boot,dm-spl;
-};
-
-&pinctrl_usdhc2 {
-	u-boot,dm-spl;
-};
-
-&pca9450 {
-	u-boot,dm-spl;
-};
-
-&{/soc@0/bus@30800000/i2c@30a20000/pmic@25/regulators} {
-	u-boot,dm-spl;
-};
-
-&ecspi1 {
-	u-boot,dm-spl;
-};
-
-&gpio1 {
-	u-boot,dm-spl;
-};
-
-&gpio2 {
-	u-boot,dm-spl;
-};
-
-&gpio3 {
-	u-boot,dm-spl;
-};
-
-&gpio4 {
-	u-boot,dm-spl;
-};
-
-&gpio5 {
-	u-boot,dm-spl;
-};
-
-&uart3 {
-	u-boot,dm-spl;
-	u-boot,dm-pre-reloc;
-};
-
-&usdhc1 {
-	u-boot,dm-spl;
-};
-
-&usdhc2 {
-	u-boot,dm-spl;
-};
-
-&wdog1 {
-	u-boot,dm-spl;
-};
+#include "imx8mm-kontron-n801x-u-boot.dtsi"