ARM: imx: pico-imx8mq: Add support for Technexion Pico-iMX8MQ

Add initial support for Technexion Pico-iMX8MQ SoM on PicoPI carrier
board. Currently working is ethernet, serial, eMMC. DT is imported
from Linux 5.4.28 ("462afcd6e7ea") .

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: "NXP i.MX U-Boot Team" <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 895f903..7d1fe75 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -55,6 +55,11 @@
 	select SUPPORT_SPL
 	select IMX8M_LPDDR4
 
+config TARGET_PICO_IMX8MQ
+	bool "Support Technexion Pico iMX8MQ"
+	select IMX8MQ
+	select IMX8M_LPDDR4
+
 config TARGET_VERDIN_IMX8MM
        bool "Support Toradex Verdin iMX8M Mini module"
        select IMX8MM
@@ -68,6 +73,7 @@
 source "board/freescale/imx8mn_evk/Kconfig"
 source "board/freescale/imx8mp_evk/Kconfig"
 source "board/google/imx8mq_phanbell/Kconfig"
+source "board/technexion/pico-imx8mq/Kconfig"
 source "board/toradex/verdin-imx8mm/Kconfig"
 
 endif