volteer: Allow equal space for RO and RW for now

We are about to run out of space in read-only memory. We don't have a
to select features for RO and RW separately. So for now, equalise the
regions to 256KB each.

BUG=b:175434113
TEST=make BOARD=volteer -j30
build volteer on zephyr

Signed-off-by: Simon Glass <sjg@chromium.org>
Change-Id: Ide5542f322e47cb985f947ae98569dc189bd5091
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/zephyr-chrome/+/2624951
Reviewed-by: Yuval Peress <peress@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
1 file changed