Do not allow power on if PNOR doesn't have required image

- The new BMC code requires the UBI based PNOR image to be loaded before
HOST turns on. If the PNOR is not formatted as UBI, we want a clear error in
the journal and quick fail to boot to notify the user.

Resolves openbmc/openbmc#2117

Change-Id: I547ba488a94c5b5871c6327b0fd3af678c656b1b
Signed-off-by: Saqib Khan <khansa@us.ibm.com>
Signed-off-by: Edward A. James <eajames@us.ibm.com>
3 files changed