usb-dbg: critical sel frame: Support critical sel show on debug card

Description:
 - Show all critical sel messages on debug card

Design:
 - This feature will iterate loggers from xyz.openbmc_project.
   Logging.Entry to parse all the critical sels and show its
   message property on debug card.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Change-Id: I562fa1f6d456b250b09c649d1ca95e8f5fe78c2c
1 file changed