Release of v0.7.4

Version 0.7.4:

• swtpm:
  • Restore logging to stderr on log open failure
  • Disable OpenSSL FIPS mode to avoid libtpms failures
  • Avoid locking directory multiple times
• swtpm_setup:
  • Exit with '0' upon --version rather than '1'.
• swtpm_localca:
  • Add missing NULL option to end of array
• SELinux:
  • Add rules for user_tpm_t:sockfile to allow unlink
  • Add rules for sock_file on user_tmp_t