polarssl 1.3.9

Version bump, and additional minor comments and changes.
polarssl: update 1.3.9 bottle.

Closes #33782.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
libtecla: 10.8> fixes.

Closes #33733.
libtecla: add 1.6.2 bottle.

Closes #33757.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>