owfs: remove include of rpc/netdb.h

owfs: remove include of rpc/netdb.h

owfs carries a copy of netdb.h from an old glibc, which is only used
to implement getaddrinfo on platforms that miss it (Solaris 7 in
particular). Since all of our libc implementations have getaddrinfo,
we don't need it.

To make the patch minimal, just include if !HAVE_GETADDRINFO.

Fixes:
http://autobuild.buildroot.net/results/d9e918c2791cd5523b2fd6478bbd4ce21e58f4f1
http://autobuild.buildroot.net/results/3a85144753e4f18491d62dccf6d5843170f8daea

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>