fixed BROK for 33 LTP test cases for Android

testsuite: syscalls
test cases:
access01
add_key01
add_key02
creat01
creat03
creat04
creat05
creat07
epoll_create1_01
epoll_ctl01
epoll_ctl02
madvise01
madvise02
madvise05
madvise06
pause01
pipe01
pipe02
pipe03
ppoll01
preadv01
preadv01_64
preadv02
preadv02_64
pwritev01
pwritev01_64
pwritev02
pwritev02_64
recvmsg02
request_key01
request_key02
sbrk03
syscall01

The reason for BROK is ltp library code tst_test.c assumed existance of
/dev/shm/
This change modified the directory to be $TMPDIR

Among these tests, 
preadv02 and pwritev02 still have failure cases.
A few other test cases also emit TCONF result.


Previous error:
>external/ltp/lib/tst_test.c:79: BROK: open(/dev/shm/ltp_***_*****): ENOENT


Change-Id: If3b2c363ec73d4245a915109fff6e895969d664d
1 file changed