zoombini: meowth: Enable Vboot hash.
zoombini: meowth: Enable Vboot hash.

The hash calculation is needed for EC software sync.

BUG=None
BRANCH=None
TEST=`make -j buildall`
TEST=Flash zoombini, verify that hash is being calculated.

Change-Id: Iddc65d5c0b04fa403b2fd5ace0096b029d5a6062
Signed-off-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@google.com>
Reviewed-on: https://chromium-review.googlesource.com/772913
Commit-Ready: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Tested-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Reviewed-by: Shawn N <5259333ce42e3ace6a73988cec7115ed9d3a661a@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec