package/multicat: add patch to fix musl build
Add a patch to fix two musl build issues:
1) `struct udphdr` requires definition of `_GNU_SOURCE`
2) `mode_t` requires including <sys/types.h>
Fixes:
http://autobuild.buildroot.net/results/9f1/
9f1a3f3aab854f1bd20f1064391e613457312022/
Upstream status: Pending [1]
[1] https://mailman.videolan.org/pipermail/multicat-devel/2016-March/000126.html
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>