Add support for i.MXRT1020-EVK board

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
diff --git a/arch/arm/mach-imx/imxrt/Kconfig b/arch/arm/mach-imx/imxrt/Kconfig
index f28d52d..d275fdf 100644
--- a/arch/arm/mach-imx/imxrt/Kconfig
+++ b/arch/arm/mach-imx/imxrt/Kconfig
@@ -18,12 +18,17 @@
 	prompt "NXP i.MXRT board select"
 	optional
 
+config TARGET_IMXRT1020_EVK
+	bool "Support imxrt1020 EVK board"
+	select IMXRT1020
+
 config TARGET_IMXRT1050_EVK
 	bool "Support imxrt1050 EVK board"
 	select IMXRT1050
 
 endchoice
 
+source "board/freescale/imxrt1020-evk/Kconfig"
 source "board/freescale/imxrt1050-evk/Kconfig"
 
 endif