kernel_AsyncDriverProbe: add test for asynchronous driver probing

We need to make sure asynchronous driver probing works well in our
kernels; this test will ensure that.

The test requires test_async_driver_probe.ko module be available, we'll
ensure that it is there with kernel_ConfigVerify test.

BUG=chromium:415343
TEST=tested on Squawks after booting image with test module enabled
CQ-DEPEND=CL:219107

Change-Id: Ifc775e0b6e85e11351a5f10e54f57c03573a7714
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/219393
Reviewed-by: Olof Johansson <olofj@chromium.org>
2 files changed