Only re-sign ARC apks when lsb-release looks legit

TEST=sign_official_build.sh with veyron_minnie image  # works
TEST=sign_official_build.sh with veyron_shark image  # skipped
BUG=chromium:638289

Change-Id: Ic00b5c73fc094ad1146ffb1f29d2dcc5cfdb839d
Reviewed-on: https://chromium-review.googlesource.com/371458
Tested-by: Victor Hsieh <victorhsieh@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed