Fixes esel test cases.
Fixes esel test cases.

Made changes in:
- Verify Multiple eSEL Using REST
- Verify eSEL Entries Using REST
- Verify eSEL Using REST

Resolves openbmc/openbmc-test-automation#738

Change-Id: I703cf1f05deae055bfcb1442a88f3ec1e423f131
Signed-off-by: Sweta Potthuri <2dadfb5b6d383cf4af087a4abfaa582bcc4a300f@in.ibm.com>

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