Add patch submitted upstream to linux-watchdog and replace the MIPS
architecture symbols. Requires one extra patch for the DIV_ROUND_*
macros, which have moved to a different header since 5.10.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>