safexcel: Set the context record unconditionally

The condition added in commit 5bdb8b273aaf excludes plain SHA
transforms, so for such sessions crypto operations would return
incorrect results.

Fixes: 5bdb8b273aaf ("safexcel: Maintain per-session context records")
Sponsored by: The FreeBSD Foundation

(cherry picked from commit 36e4dcf47d45bbb87875ee4a9f5cc26a72a9f048)