board: rockchip: Add Edgeble Neu2 IO Board

Neural Compute Module 2(Neu2) IO board is an industrial form factor
IO board from Edgeble AI.

General features:
- microSD slot
- MIPI DSI connector
- 2x USB Host
- 1x USB OTG
- Ethernet
- mini PCIe
- Onboard PoE
- RS485, RS232, CAN
- Micro Phone array
- Speaker
- RTC battery slot
- 40-pin expansion

Neu2 needs to mount on top of this IO board in order to create complete
Edgeble Neural Compute Module 2(Neu2) IO platform.

Add support for it.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
diff --git a/board/edgeble/neural-compute-module-2/Kconfig b/board/edgeble/neural-compute-module-2/Kconfig
new file mode 100644
index 0000000..21faf4a
--- /dev/null
+++ b/board/edgeble/neural-compute-module-2/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_RV1126_NEU2
+
+config SYS_BOARD
+	default "neural-compute-module-2"
+
+config SYS_VENDOR
+	default "edgeble"
+
+config SYS_CONFIG_NAME
+	default "neural-compute-module-2"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select RAM_ROCKCHIP_LPDDR4
+
+endif