fips: Fix gen-note-integrity.sh script not to use cmp utility.
* src/gen-note-integrity.sh: Simplify detecting 32-bit machine or 64-bit machine.
Backport master commit of:
3c8b6c4a9cad59c5e1db5706f6774a3141b60210
- GnuPG-bug-id: T5835
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>