xfsprogs: fix build with older kernel headers

xfsprogs: fix build with older kernel headers

xfsprogs uses a local definition of struct fsxattr when the kernel
provided one in linux/fs.h is too old. The preprocessor trickery that
allows to include linux/fs.h without colliding with the local
definitions breaks when source files include linux/fs.h on their own.
Add a patch that removes these local includes.

Fixes:
http://autobuild.buildroot.net/results/3aa/3aad812582d94b76d204436d2879bfa732c34da6/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>