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>
serialserver_polling: bug fix Fix an issue when multiple characters received between seL4_Poll calls, the receiver will only process 1 char then start polling again.
serialserver: add examples for getchar add poll based and interrupt based examples for demonstrating getchar.