Verify OS can boot with no VPD cache files
Verify OS can boot with no VPD cache files

After having done a PNOR update and booted the OS,
remove cached VPD files and verify OS can still boot.

Resolves openbmc/openbmc-test-automation#1436

Change-Id: I0d6c6b4f521402c1d37e49715947136d37c06dfb
Signed-off-by: Steven Sombar <fb37bb6ac5c2258e1cbf80690dea88925949957e@us.ibm.com>

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