mx7ulp: Add support for Embedded Artists COM board

The Embedded Artists COM board is based on NXP i.MX7ULP.

It has a BD70528 PMIC from Rohm with discrete DCDC powering option and
improved current observability (compared to the existing NXP i.MX7ULP EVK).

Add the initial support for the board.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 88b2bf4..afe38e1 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -688,7 +688,8 @@
 	imx7d-pico-hobbit.dtb
 
 
-dtb-$(CONFIG_ARCH_MX7ULP) += imx7ulp-evk.dtb
+dtb-$(CONFIG_ARCH_MX7ULP) += imx7ulp-com.dtb \
+	imx7ulp-evk.dtb
 
 dtb-$(CONFIG_ARCH_IMX8) += \
 	fsl-imx8qm-apalis.dtb \