Adds initial Nexys Video board support.

Co-authored-by: pznikola <p.z.nikola@etf.rs>

fpga/Makefile

@@ -57,6 +57,21 @@ ifeq ($(SUB_PROJECT),bringup)
 	BOARD             ?= vcu118
 	FPGA_BRAND        ?= xilinx
 endif
+
+ifeq ($(SUB_PROJECT),nexysvideo)
+	SBT_PROJECT       ?= fpga_platforms
+	MODEL             ?= NexysVideoHarness
+	VLOG_MODEL        ?= NexysVideoHarness
+	MODEL_PACKAGE     ?= chipyard.fpga.nexysvideo
+	CONFIG            ?= RocketNexysVideoConfig
+	CONFIG_PACKAGE    ?= chipyard.fpga.nexysvideo
+	GENERATOR_PACKAGE ?= chipyard
+	TB                ?= none # unused
+	TOP               ?= ChipTop
+	BOARD             ?= nexys_video
+	FPGA_BRAND        ?= xilinx
+endif
+
 ifeq ($(SUB_PROJECT),arty)
 	# TODO: Fix with Arty
 	SBT_PROJECT       ?= fpga_platforms