Handle reconnect_output exception in display_EdidStress

Currently we get 'Error: Fail to get HDMI-1 connected' when
reconnect_output() fails. This patch improves the error message by
including the name of the failed EDID file.

BUG=None
TEST=run the test on peach_pi and see failed EDID file being reported.

Change-Id: I76dc4df9d4019ce601c58a170e680eb39f114875
Reviewed-on: https://chromium-review.googlesource.com/226780
Tested-by: Hung-ying Tyan <tyanh@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@chromium.org>
Commit-Queue: Hung-ying Tyan <tyanh@chromium.org>
1 file changed