Decrement reboot counter on all boot attempts

OpenBMC will control the default amount of boot attemps
allowed on systems. If an external entity requests to
set the boot count, it will be treated as a command
to reset the boot count to the OpenBMC configured
default.

Resolves openbmc/openbmc#1676
Resolves openbmc/openbmc#1646

Change-Id: I7d03272d174685a72e1bdff4d7e2142fc69b7edf
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
2 files changed