Add support for the Precision Architecture (a.k.a. PA-RISC),
a 32-bit architecture developed by Hewlett Packard.
While at it, add this arch to myself in DEVELOPERS.
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Julien Olivain <ju.o@free.fr>
[Julien: arch "arch/" prefix in commit title]
Signed-off-by: Julien Olivain <ju.o@free.fr>