bcachefs: Fix BCH_SB_ERRS() so we can reorder

BCH_SB_ERRS() has a field for the actual enum val so that we can reorder
to reorganize, but the way BCH_SB_ERR_MAX was defined didn't allow for
this.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/bcachefs.h b/fs/bcachefs/bcachefs.h
index c711d4c..e6dd481 100644
--- a/fs/bcachefs/bcachefs.h
+++ b/fs/bcachefs/bcachefs.h
@@ -776,7 +776,7 @@ struct bch_fs {
 		unsigned	nsec_per_time_unit;
 		u64		features;
 		u64		compat;
-		unsigned long	errors_silent[BITS_TO_LONGS(BCH_SB_ERR_MAX)];
+		unsigned long	errors_silent[BITS_TO_LONGS(BCH_FSCK_ERR_MAX)];
 		u64		btrees_lost_data;
 	}			sb;