[3.19] community/tinyssh: add mitigations for CVE-2023-48795
implementation-kex-strict-s-v00-at-openssh.com.patch is unmodified https://github.com/janmojzis/tinyssh/commit/ebaa1bd23c2c548af70cc8151e85c74f4c8594bb
implementation-kex-strict-s-v00-at-openssh.com.patch is unmodified https://github.com/janmojzis/tinyssh/commit/ebaa1bd23c2c548af70cc8151e85c74f4c8594bb