touch_updater/etphidiap: Add arm64 policy to support

BUG=b:441198164
TEST=1. emerge etphidiap build pass
     2. verify upgrade and downgrade on a device pass

Change-Id: Ice13e6457031a4e3efb5dc54a320c4593efd1085
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/7256078
Tested-by: Haikun Zhou <zhouhaikun5@huaqin.corp-partner.google.com>
Commit-Queue: Tony Chang <tonytcc@google.com>
Reviewed-by: Henry Barnor <hbarnor@chromium.org>
Reviewed-by: zhaoxiong lv <lvzhaoxiong@huaqin.corp-partner.google.com>
Reviewed-by: Tony Chang <tonytcc@google.com>
2 files changed