Add SEL commands for Jounal-based SEL entries

This change adds support for SEL IPMI commands using
journal-based SEL entries.

It adds Get SEL Info, Get SEL Entry, Add SEL Entry, and
Clear SEL, to get and add entries using the journal.

This is going into intel-ipmi-oem for now because of conflicts
with existing SEL and sensor numbering implemenations.  Once
the implemenations can be aligned, these commands can move to
the common IPMI implementation.

Tested: Verified that each of the above commands works as
expected.

Change-Id: Ib7c3832dfaf2bd60e828e368e029a2754c774b07
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>
2 files changed