Add test cases for persisting data between BMC code update

-Add test case for verifying error log persistence, BMC
dump persistence, and settings persistence over a BMC
code update
-Fix setup and teardown keywords to match new style standards

Resolves openbmc/openbmc-test-automation#994

Change-Id: Id79824bceada2530054b199ed54d164f2bfb2499
Signed-off-by: Charles Paul Hofer <Charles.Hofer@ibm.com>
1 file changed