btrfs-progs: Don't increase error count if the inode can be repaired.

btrfs-progs: Don't increase error count if the inode can be repaired.

The original check_inode_recs() will return -1 if found any error in a
inode_record. This is OK for original design since there is almost
nothing can repair at that time.

However more and more error from nlink mismatch to missing inode item
can be repaired in try_repair_inode(), check_inode_recs() should not
increase the error count if the inode can be repair.

With this patch, repair function for leaf-corruption will not return
error if all corruption inode can be recovered.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>