The current configuration only allows ~170 updates before we can
expect wear on the flash device (per product spec that the flash
device supports 10,000 erase cycles). Increase the scratch size to
make this better by removing some application space, to allow for
~2500 application updates or rollbacks.
The new configuration is 52 KiB (13 sectors) for scratch, and 208
KiB (52 sectors) for each application image.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
94f3f91ca7