When disabling auto_good_crc, the reg variable was being used
without initialization. Mirror the code for enabling auto_good_crc
to set the variable.
TEST=Booted reef with updated code.
BUG=None
BRANCH=None
Change-Id: Ie552f2ff74df05750bd65b6344d8a80cc285f8b0
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/368221
Reviewed-by: David Hendricks <dhendrix@chromium.org>