Add i.MX7D based Meerkat96 board support

The Meerkat96 board, based on the NXP i.MX7D SoC, is a member of
96Boards community and complies with all Consumer Edition board
specifications.

https://www.novtech.com/products/meerkat96.html
https://www.96boards.org/product/imx7-96/

The initial supported/tested devices include:
 - Debug serial
 - SD
 - USB Host (with Ethernet)

With these support, it's good enough for loading Linux Kernel from SD or
Ethernet over USB.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
diff --git a/arch/arm/mach-imx/mx7/Kconfig b/arch/arm/mach-imx/mx7/Kconfig
index 232f332..286d365 100644
--- a/arch/arm/mach-imx/mx7/Kconfig
+++ b/arch/arm/mach-imx/mx7/Kconfig
@@ -28,6 +28,15 @@
 	select SUPPORT_SPL
 	imply CMD_DM
 
+config TARGET_MEERKAT96
+	bool "NovTech Meerkat96 board"
+	select BOARD_LATE_INIT
+	select DM
+	select DM_SERIAL
+	select DM_THERMAL
+	select MX7D
+	imply CMD_DM
+
 config TARGET_MX7DSABRESD
 	bool "mx7dsabresd"
 	select BOARD_LATE_INIT
@@ -67,6 +76,7 @@
 
 source "board/compulab/cl-som-imx7/Kconfig"
 source "board/freescale/mx7dsabresd/Kconfig"
+source "board/novtech/meerkat96/Kconfig"
 source "board/technexion/pico-imx7d/Kconfig"
 source "board/toradex/colibri_imx7/Kconfig"
 source "board/warp7/Kconfig"