Fixes coccicheck warning:

fs/cifs/smb2ops.c:807:2-36: WARNING: Assignment of 0/1 to bool variable
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: Nzhengbin <zhengbin13@huawei.com>
Signed-off-by: NSteve French <stfrench@microsoft.com>