jffs2: Correct some typos in comments

Fixed some confusing spelling errors, the details are as follows:

-in the code comments:
	wating		-> waiting
	succefully	-> successfully

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

Author: Shen Lichuan

fs/jffs2/gc.c

@@ -82,7 +82,7 @@ static struct jffs2_eraseblock *jffs2_find_gc_block(struct jffs2_sb_info *c)
 
 		nextlist = &c->erasable_list;
 	} else if (!list_empty(&c->erasable_pending_wbuf_list)) {
-		/* There are blocks are wating for the wbuf sync */
+		/* There are blocks are waiting for the wbuf sync */
 		jffs2_dbg(1, "Synching wbuf in order to reuse erasable_pending_wbuf_list blocks\n");
 		spin_unlock(&c->erase_completion_lock);
 		jffs2_flush_wbuf_pad(c);

fs/jffs2/readinode.c

@@ -72,7 +72,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
 		if (err != -EOPNOTSUPP)
 			JFFS2_WARNING("MTD point failed: error code %d.\n", err);
 	} else
-		pointed = 1; /* succefully pointed to device */
+		pointed = 1; /* successfully pointed to device */
 #endif
 
 	if (!pointed) {