Include -e option in the ffdc during the dump collection

ffdc -e option is used to enable dump specific features.

Resolves openbmc/openbmc#1795

Change-Id: Ib90e590ab48d37413890a77e7d28162a5f4d5733
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>