Support for new plug in environment variables.
Support for new plug in environment variables.

lib/obmc_boot_test.py:
  - plug_in_setup: I added support for the following environment
    variables:
    - BASE_TOOL_DIR_PATH
    - FFDC_LIST_FILE_PATH

Change-Id: I82a173fd2166fa97e35a017e203a683a75b81af9
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation