drivers: disable cros_flash until the code can compile

This code will not compile.  See b/176828988 for the failures.

It will be disabled until the code can compile.

BUG=b:176828988
TEST=less compile failures

Change-Id: I8e67c538975193d30d77068158a642ee4b9ef86c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/zephyr-chrome/+/2611079
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Yuval Peress <peress@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
1 file changed