fs/ntfs3: Restore ntfs_xattr_get_acl and ntfs_xattr_set_acl functions

fs/ntfs3: Restore ntfs_xattr_get_acl and ntfs_xattr_set_acl functions

commit 87e21c99bad763524c953ff4d1a61ee19038ddc2 upstream.

Apparently we need to maintain these functions with
ntfs_get_acl_ex and ntfs_set_acl_ex.
This commit fixes xfstest generic/099
Fixes: 95dd8b2c1ed0 ("fs/ntfs3: Remove unnecessary functions")
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>