This test seems to be fine in the current master, but doing
development, it easily starts to overflow RAM of some boards and/or
crash due to stack checks. So, decrease the ramdisk (the biggest
eater of RAM here) from default 96K to 80K, and bump main stack
size proactively.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
As a master switch to access POSIX APIs.
Also, remove dependency on pthreads for tests which don't require it.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>