Build/install lib/libc/tests/hash/t_sha2 if MK_OPENSSL == yes

Reported by: Beeblebrox <zaphod@berentweb.com>


git-svn-id: svn+ssh://svn.freebsd.org/base/head@276318 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Fix the function signatures when MK_CRYPT == no for snmp_get_local_keys and
snmp_passwd_to_keys

MFC after: 1 week
Reported by: Beeblebrox <zaphod@berentweb.com>


git-svn-id: svn+ssh://svn.freebsd.org/base/head@276319 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f