mb/google/brox: Fix memory config

Fix up the memory config for brox based on the schematics.  Also,
since memory training needs to happen in romstage, initializing the
MEM_STRAP & MEM_CH_SEL gpios for use in romstage. Also consolidating
the GPIOs needing to be initialized in romstage into the baseboard
gpio.c file.

BUG=b:300690448
BRANCH=None
TEST=emerge-brox coreboot

Change-Id: I17615cda7df10e73e49fb49f736728787ef7625d
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79355
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>

0 files changed, 0 insertions, 0 deletions