f2fs: code clean and fix a type error

ERROR: code indent should use tabs where possible
ERROR: spaces required around that ':'
ERROR: incorrect tab

Found serveral code type errors when review the code and fix it.
There is no function change.
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/data.c

@@ -723,7 +723,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
 		wbc_account_cgroup_owner(fio->io_wbc, page, PAGE_SIZE);
 
 	inc_page_count(fio->sbi, is_read_io(fio->op) ?
-			__read_io_type(page): WB_DATA_TYPE(fio->page));
+			__read_io_type(page) : WB_DATA_TYPE(fio->page));
 
 	__submit_bio(fio->sbi, bio, fio->type);
 	return 0;

fs/f2fs/debug.c

@@ -347,7 +347,7 @@ static int stat_show(struct seq_file *s, void *v)
 
 		seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
 			si->sbi->sb->s_bdev, i++,
-			f2fs_readonly(si->sbi->sb) ? "RO": "RW",
+			f2fs_readonly(si->sbi->sb) ? "RO" : "RW",
 			is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
 			"Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good"));
 		if (si->sbi->s_flag) {

fs/f2fs/file.c

@@ -4622,7 +4622,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 skip_write_trace:
 		/* Do the actual write. */
 		ret = dio ?
-			f2fs_dio_write_iter(iocb, from, &may_need_sync):
+			f2fs_dio_write_iter(iocb, from, &may_need_sync) :
 			f2fs_buffered_write_iter(iocb, from);
 
 		if (trace_f2fs_datawrite_end_enabled())