Merge changes from topic "for_lts_2.8.19" into lts-v2.8

* changes:
  docs: decrease the minimum supported OpenSSL
  fix(cpus): workaround for Cortex-X4 erratum 2763018
  fix(cpus): workaround for Cortex-X4 erratum 2740089
  fix(cpus): workaround for Cortex-A715 erratum 2728106