This enables the logging of device path into CMOS
to assist in debug of boot and resume hangs.
BUG=chrome-os-partner:19980
BRANCH=none
TEST=manual: interrupted boot with reset button and
gathered the eventlog. Mosys has been extended to
decode the well-known POST codes:
26 | 2013-06-10 10:32:48 | System boot | 120
27 | 2013-06-10 10:32:48 | Last post code in previous boot | 0x75 | Device Initialize
28 | 2013-06-10 10:32:48 | Extra info from previous boot | PCI | 00:16.0
29 | 2013-06-10 10:32:48 | Reset Button
30 | 2013-06-10 10:32:48 | System Reset
Change-Id: Ibe78499ddfeac522a73c7324da8ab6e4f2d1945b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58107
