ARM: dts: add Altesco I6P board

Altesco (Altus-Escon-Company BV) I6P is a part of the diagnostic system
for the vehicle inspection stations.
Co-developed-by: David Jander <david@protonic.nl>
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/Makefile

@@ -414,6 +414,7 @@ dtb-$(CONFIG_SOC_IMX53) += \
 	imx53-usbarmory.dtb \
 	imx53-voipac-bsb.dtb
 dtb-$(CONFIG_SOC_IMX6Q) += \
+	imx6dl-alti6p.dtb \
 	imx6dl-apf6dev.dtb \
 	imx6dl-aristainetos_4.dtb \
 	imx6dl-aristainetos_7.dtb \