[autotest] Have poor_mans_rpc use the correct directory.

Poor_mans_rpc by default hardcodes in /usr/local/autotest as the
client test directory. This change has it pull in the correct
autotest directory when forming its rpc call.

BUG=chromium:403990
TEST=Able to add to local afe the moblab DUT.

Change-Id: Ibe0b5710a9f7c7597cad5ee1745f0fc2af6bb885
Reviewed-on: https://chromium-review.googlesource.com/212711
Tested-by: Simran Basi <sbasi@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Simran Basi <sbasi@chromium.org>
1 file changed