Make ARM compiler happy for developing s3c6410 LCD drivers.

Signed-off-by: wuxin <82828068@qq.com>
Merge pull request #18 from tc1989tc/master

1.fss文件系统实现读取目录下文件接口req_readdir 2.通过上层lib的opendir readdir 的调用req_readdir . 命令行ls能看见目录文件了.
1,add req_close, 2,add ke_handle_put
Merge pull request #5 from gridnow/master

wuxin 实现close