spd_cache debug: Log invalid CRC checksum

"SPD has a invalid or zero-valued CRC" is not a very useful message,
so show the actual and expected values.

Change-Id: I31a1cdacc82240c699627769d490b94f5d378e86
Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>
Reviewed-on: http://review.coreboot.org/7393
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2 files changed