bcachefs: mark invalid_btree_id autofix

Checking for invalid IDs was introduced in 9e7cfb3 ("bcachefs: Check for invalid btree IDs")
to prevent an invalid shift later, but since 1415265 ("bcachefs: Bad btree roots are now autofix")
which made btree_root_bkey_invalid autofix, the fsck_err_on call didn't
do anything.

We can mark this err type (invalid_btree_id) autofix as well, so it gets
handled.

Reported-by: syzbot+029d1989099aa5ae3e89@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=029d1989099aa5ae3e89
Fixes: 1415265 ("bcachefs: Bad btree roots are now autofix")

Signed-off-by: Bharadwaj Raju <bharadwaj.raju777@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Author: bharadwaj-raju

fs/bcachefs/sb-errors_format.h

@@ -314,7 +314,7 @@ enum bch_fsck_flags {
 	x(accounting_mismatch,					272,	FSCK_AUTOFIX)	\
 	x(accounting_replicas_not_marked,			273,	0)		\
 	x(accounting_to_invalid_device,				289,	0)		\
-	x(invalid_btree_id,					274,	0)		\
+	x(invalid_btree_id,					274,	FSCK_AUTOFIX)		\
 	x(alloc_key_io_time_bad,				275,	0)		\
 	x(alloc_key_fragmentation_lru_wrong,			276,	FSCK_AUTOFIX)	\
 	x(accounting_key_junk_at_end,				277,	FSCK_AUTOFIX)	\