inteltool: add `-s` to dump spi bar and bios_cntl registers

Change-Id: I3bb5dc23885af8c992456ee5e4bd374cd4b813bf
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/8049
Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
5 files changed