mainboard/google/reef: adjust chromeos.fmd regions

- Drastically reduced RW_MRC_CACHE size to hold one update. Now
  that this area isn't changing after every S5 entry there's no
  need make it so large.
- ELOG area reduced by 4KiB for subsequent area alignment. In practice
  this doesn't matter because the elog library only uses 4KiB bytes.
  16KiB->12KiB is a nop.
- Moved RW_NVRAM for subsequent alignment.
- Most importantly, RW_SECTION_(A|B) are aligned to 64KiB boundaries
  and sized to 64KiB multiples. This ensures updates don't need a
  read-modify-write that could force a system into recovery if
  an inopportune power event occurred.

BUG=chrome-os-partner:60492
BRANCH=reef

Change-Id: I2a2e2797897c934db1a3f9627c6c13a9b2aad540
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17727
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions