fuse: fix build on arm64

fuse: fix build on arm64

error:
../include/fuse_kernel.h:93:15: error: conflicting types for 'int64_t'
../include/fuse_kernel.h:92:15: error: conflicting types for 'uint64_t'

reported by buildbot

fix by adopting upstream patch:
http://git.baserock.org/cgi-bin/cgit.cgi/delta/fuse.git/commit/include/fuse_kernel.h?id=914871b20a901e3e1e981c92bc42b1c93b7ab81b

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45740 3c298f89-4303-0410-b956-a3cf2f4a3e73