This change adds a helper sb_spi_init() that makes all the required
calls for configuring SPI to ROM.
BUG=b:147758054,b:153675510
BRANCH=trembyle-bringup
TEST=Verified that SPI configuration is correct for trembyle.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ic5b395a8d3bdab449c24b05d1b6b8777e128b5e0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40824
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
173c7c4594