Log Message:
nss: update to 3.80.

Ok during freeze: gdt@

Changes:
   - Bug 1774720 - Fix SEC_ERROR_ALGORITHM_MISMATCH entry in SECerrs.h.
   - Bug 1617956 - Add support for asynchronous client auth hooks.
   - Bug 1497537 - nss-policy-check: make unknown keyword check optional.
   - Bug 1765383 - GatherBuffer: Reduced plaintext buffer allocations
   by allocating it on initialization. Replaced redundant code with
   assert. Debug builds: Added buffer freeing/allocation for each
   record.
   - Bug 1773022 - Mark 3.79 as an ESR release.
   - Bug 1764206 - Bump nssckbi version number for June.
   - Bug 1759815 - Remove Hellenic Academic 2011 Root.
   - Bug 1770267 - Add E-Tugra Roots.
   - Bug 1768970 - Add Certainly Roots.
   - Bug 1764392 - Add DigitCert Roots.
   - Bug 1759794 - Protect SFTKSlot needLogin with slotLock.
   - Bug 1366464 - Compare signature and signatureAlgorithm fields
   in legacy certificate verifier.
   - Bug 1771497 - Uninitialized value in cert_VerifyCertChainOld.
   - Bug 1771495 - Unchecked return code in sec_DecodeSigAlg.
   - Bug 1771498 - Uninitialized value in cert_ComputeCertType.
   - Bug 1760998 - Avoid data race on primary password change.
   - Bug 1769063 - Replace ppc64 dcbzl intrinisic.
   - Bug 1771036 - Allow LDFLAGS override in makefile builds.