PEL: Reset host transmission state on restart
PEL: Reset host transmission state on restart

When the Repository class starts up, if it finds any existing PELs with
a host transmission state of 'sent', set it back to 'new' so that it
will get sent again, as the BMC restarted or the daemon crashed before
the host could ack it.

Signed-off-by: Matt Spinler <c000c989d08c98662d98f15448f11de169feb92d@us.ibm.com>
Change-Id: Ieeca2c1a92eabc0a22051be6b87cecbe0b1d519d

openbmc/phosphor-logging,openbmc/phosphor-logging,openbmc/phosphor-logging,openbmc/phosphor-logging