lava_wait_jobs.py: Check status "lava-test-monitor" in "lava" suite

There can be cases when a test failed due e.g. timeout is not recorded in
specific testsuite, but instead recorded as a failure of "lava-test-monitor"
testcase in the "lava" special-purpose suite.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I9f7c405219c01707647aa2b655e308ca3fe282db
1 file changed