rng-tools: Update to version 6.14

rng-tools: Update to version 6.14

- Update from 6.12 to 6.14
- Update of rootfile not required
- patch for building rng-tools also for i586 removed as 32 bit will no longer be EOL at
   end of 2021
- Building 6.14 caused an error for not finding librtlsdr. The same check is in the
   makefile in 6.12 but it does not get checked. I could not find why the check was being
   carried out in 6.14 - it was not due to the removal of the patch. In the end I added
   the --disable-rtlsdr option to configure and this allowed the build to occur without
   the check for the prescence of librtlsdr being carried out.
- Changelog
   rng-tools 6.14
    Bug Fixes:
      Fixed a null pointer deref in nistbeacon entropy source
      fixed some confguration tests
      clarified some rngd behavior in the man page
      update init code to do proper logging
      various covscan fixes
      fixed a memory leak in jitter entropy source
      fixed possible NULL deref in rdrand source
      various fixed in openssl mangling code
      added randstat binary to build
      minor modernizations to configure.ac
   rng-tools 6.13
    Features:
      Support rndr instruction on arm
      Support jitter software timer on coarse time systems
    Bug Fixes:
      Merged all openssl use into a single helper library
      Improved console output readability

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>