Include a hash of specfile, patches, and sources in the FIPS module
version. This should allow us to uniquely identify a build that we do,
so that we can be sure which specific binary is being submitted for
validation and was certified.
The previous solution used $(date +%Y%m%d), which had some risks related
to build server timezone and build date differences on different
architectures.
Resolves: rhbz#2070550
Signed-off-by: Clemens Lang <cllang@redhat.com>