rarpd: add new recipe

RARP (Reverse Address Resolution Protocol) is a protocol which allows
individual devices on an IP network to get their own IP addresses from
the RARP server. Some machines (e.g. SPARC boxes) use this protocol
instead of e.g. DHCP to query their IP addresses during network bootup.

Linux kernels up to 2.2 used to provide a kernel daemon for this
service,but since 2.3 kernels it is served by this userland daemon.
You should install rarpd if you want to set up a RARP server on your
network.

Signed-off-by: Li Xin <lixin.fnst@cn.fujitsu.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>