some tests configured with CONFIG_NEWLIB_LIBC=y,
it's better to add a filter filter: TOOLCHAIN_HAS_NEWLIB == 1
in those tests yaml file.
Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
Build a sample variant with CONFIG_POSIX_API enabled, to check that
we have select() call available to applications.
Also, bump stack size, as the app crashes now with the default size.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>