Fix for usr/sbin/faillock file not found failure.
Fix for usr/sbin/faillock file not found failure.

Added check for faillock file, if present it execute faillock cmd
else execute pam_tally2 cmd to reset the accountlock.

Signed-off-by: Nagarjun B  <2172af3deefd558cd9c83c7eda77ebce2d8d6dab@ami.com>
Change-Id: I2df6dd9e729be149e9631b844e8197915f0fba69

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