While the test-build test happily run for mingw the test-mingw case
runs more of the packaging inline with what our CI does. It however
fails if we don't find both compilers and expects to be run on a
docker image with both.
Remove that distinction and make it work more like the other build
test scripts.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221027183637.2772968-3-alex.bennee@linaro.org>