Cross Reference: /external/ltp/testcases/kernel/syscalls/readdir

`Name`	`Date`	`Size`
Up to higher level directory
`Makefile`	22-Oct-2020	`915`
`readdir01.c`	22-Oct-2020	`8.6K`
`readdir02.c`	22-Oct-2020	`3.2K`
`readdir21.c`	22-Oct-2020	`3.7K`