fpga: lib: Add AXI-Stream splitter (axis_split)

The axis_split module takes a single AXI-Stream input and duplicates it
onto multiple AXI-Stream outputs. This block correctly handles the
somewhat tricky flow-control logic so that the AXI-Stream handshake
protocol is honored at all top-level ports.


Original-commit: fa0f4b2833119d57d331f592028ff9f032895c89

lib/axi/Makefile.srcs

@@ -33,4 +33,5 @@ axis_shift_register.v \
 axis_upsizer.v \
 axis_downsizer.v \
 axis_width_conv.v \
+axis_split.v \
 ))