board: presidio-asic: Add basic G3 engr. development board support

Add basic Presidio G3 engineering board support

Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 9303beb..6915783 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -909,6 +909,8 @@
 
 dtb-$(CONFIG_TARGET_DURIAN) += phytium-durian.dtb
 
+dtb-$(CONFIG_TARGET_PRESIDIO_ASIC) += ca-presidio-engboard.dtb
+
 targets += $(dtb-y)
 
 # Add any required device tree compiler flags here