Hi

When running shmat01 on some platforms, it fails on
"addr = shmat(*(tc.shmid), base_addr + tc.offset,tc.flags);"
with a INVAL error. Look at codes in "setup()", it probes
an available address and align the address to SHMLBA. After
alignment, the new address is no guarantee to be available
any more. Here a bigger size is used to probe so that it's
still valid address after alignment.Pertaining to the function 
setup_tc(lc, &tc) ,when it outside of "for (i = 0; i < TST_TOTAL; 
i++)",and printf the tc.offset value is always 0,add correct a mistake
of original codes to move "setup_tc()" to right place.

Signed-off-by: Yang Wei <wei.yang@windriver.com>

wei yang
BR