[Linaro-validation] Health check status

Hi all,

One overnight failure:

---------------- panda-es04 ---------------- http://validation.linaro.org/lava-server/scheduler/job/40109

Failed to get into test image. Some sort of corruption. Went onto the board and booted test image again. It came up, and we got a command prompt, but it was still pretty flakey: https://pastebin.linaro.org/1129/

Although a reboot of the test image *might* have fixed this, it looks like either the test image was dodgy, or the board is genuinely failing. I've put back online to test.

Thanks

Dave