imx6: aristainetos: prepare dts for other board versions

as we switch to support DM and DTS, rework the existing
DTS trees. Change also Linux specific Device trees, goal
is to push this changes to linux.

Collect U-Boot specific changes in separate "*u-boot*" dts
files.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/arm/dts/imx6dl-aristainetos2_4.dts b/arch/arm/dts/imx6dl-aristainetos2_4.dts
index 0e28a70..0157e24 100644
--- a/arch/arm/dts/imx6dl-aristainetos2_4.dts
+++ b/arch/arm/dts/imx6dl-aristainetos2_4.dts
@@ -1,46 +1,21 @@
 // SPDX-License-Identifier: (GPL-2.0)
 /*
  * support for the imx6 based aristainetos2 board
+ * parts for 4.3 inch LG display on spi1 port0
  *
  * Copyright (C) 2019 Heiko Schocher <hs@denx.de>
  * Copyright (C) 2015 Heiko Schocher <hs@denx.de>
  *
  */
 /dts-v1/;
-#include "imx6dl.dtsi"
+
+#include "imx6dl-aristainetos2_4.dtsi"
 #include "imx6qdl-aristainetos2.dtsi"
 
 / {
 	model = "aristainetos2 i.MX6 Dual Lite Board 4";
 	compatible = "fsl,imx6dl";
 
-	memory@10000000 {
-		device_type = "memory";
-		reg = <0x10000000 0x40000000>;
-	};
-
-	display0: disp0 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		compatible = "fsl,imx-parallel-display";
-		interface-pix-fmt = "rgb24";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_ipu_disp>;
-
-		port@0 {
-			reg = <0>;
-			display0_in: endpoint {
-				remote-endpoint = <&ipu1_di0_disp0>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-			display_out: endpoint {
-				remote-endpoint = <&panel_in>;
-			};
-		};
-	};
 };
 
 &ecspi1 {
@@ -74,51 +49,3 @@
 		};
 	};
 };
-
-&i2c3 {
-	touch: touch@4b {
-		compatible = "atmel,maxtouch";
-		reg = <0x4b>;
-		interrupt-parent = <&gpio2>;
-		interrupts = <9 8>;
-	};
-};
-
-&ipu1_di0_disp0 {
-	remote-endpoint = <&display0_in>;
-};
-
-&iomuxc {
-	pinctrl_ipu_disp: ipudisp1grp {
-		fsl,pins = <
-			MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK 0x31
-			MX6QDL_PAD_DI0_PIN15__IPU1_DI0_PIN15       0xE1
-			MX6QDL_PAD_DI0_PIN2__IPU1_DI0_PIN02        0x10
-			MX6QDL_PAD_DI0_PIN3__IPU1_DI0_PIN03        0x10
-			MX6QDL_PAD_DISP0_DAT0__IPU1_DISP0_DATA00   0xE1
-			MX6QDL_PAD_DISP0_DAT1__IPU1_DISP0_DATA01   0xE1
-			MX6QDL_PAD_DISP0_DAT2__IPU1_DISP0_DATA02   0xE1
-			MX6QDL_PAD_DISP0_DAT3__IPU1_DISP0_DATA03   0xE1
-			MX6QDL_PAD_DISP0_DAT4__IPU1_DISP0_DATA04   0xE1
-			MX6QDL_PAD_DISP0_DAT5__IPU1_DISP0_DATA05   0xE1
-			MX6QDL_PAD_DISP0_DAT6__IPU1_DISP0_DATA06   0xE1
-			MX6QDL_PAD_DISP0_DAT7__IPU1_DISP0_DATA07   0xE1
-			MX6QDL_PAD_DISP0_DAT8__IPU1_DISP0_DATA08   0xE1
-			MX6QDL_PAD_DISP0_DAT9__IPU1_DISP0_DATA09   0xE1
-			MX6QDL_PAD_DISP0_DAT10__IPU1_DISP0_DATA10  0xE1
-			MX6QDL_PAD_DISP0_DAT11__IPU1_DISP0_DATA11  0xE1
-			MX6QDL_PAD_DISP0_DAT12__IPU1_DISP0_DATA12  0xE1
-			MX6QDL_PAD_DISP0_DAT13__IPU1_DISP0_DATA13  0xE1
-			MX6QDL_PAD_DISP0_DAT14__IPU1_DISP0_DATA14  0xe1
-			MX6QDL_PAD_DISP0_DAT15__IPU1_DISP0_DATA15  0xE1
-			MX6QDL_PAD_DISP0_DAT16__IPU1_DISP0_DATA16  0xE1
-			MX6QDL_PAD_DISP0_DAT17__IPU1_DISP0_DATA17  0xE1
-			MX6QDL_PAD_DISP0_DAT18__IPU1_DISP0_DATA18  0xE1
-			MX6QDL_PAD_DISP0_DAT19__IPU1_DISP0_DATA19  0xE1
-			MX6QDL_PAD_DISP0_DAT20__IPU1_DISP0_DATA20  0xE1
-			MX6QDL_PAD_DISP0_DAT21__IPU1_DISP0_DATA21  0xE1
-			MX6QDL_PAD_DISP0_DAT22__IPU1_DISP0_DATA22  0xE1
-			MX6QDL_PAD_DISP0_DAT23__IPU1_DISP0_DATA23  0xE1
-		>;
-	};
-};