Convert license tags to SPDX Also clarifies provenance of code in `apps/fdtgen/fdt_utils.c` Signed-off-by: Gerwin Klein <gerwin.klein@data61.csiro.au>
picotcp_tcp_echo: Add utilization and tracing - Add a socket for starting and stopping and reporting utilization information gathering - Add BenchUtiliz component for performing measurements and also tracing support.