vfs_streams_xattr: remove all uses of fd, use name based functions
We don't really need an fd in this module, all calls to the VFS xattr
API can just use the name based versions.
This paves the way for removing the open of the basefile in
streams_xattr_open() in a later commit.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
(backported from commit
ea906bb476516c05e7cbda478afd32acb443c03e)