tests: Improve test coverage for FIPS service indicators.
* tests/basic.c (check_digests): Check the FIPS indicators. (check_mac): Ditto.
Cherry-pick master commit of:
fae63f517906ba8f46d255f1b5770665f2197ad9
- Signed-off-by: Jakub Jelen <jjelen@redhat.com>