Fix the following coccinelle warnings:

fs/udf/inode.c:753:2-13: WARNING: Assignment of bool to 0/1
fs/udf/inode.c:795:2-13: WARNING: Assignment of bool to 0/1
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Signed-off-by: NJan Kara <jack@suse.cz>