crypto: Support multiple nonce lengths for AES-CCM.

Permit nonces of lengths 7 through 13 in the OCF framework and the
cryptosoft driver. A helper function (ccm_max_payload_length) can be
used in OCF drivers to reject CCM requests which are too large for the
specified nonce length.

Reviewed by: sef
Sponsored by: Chelsio Communications, The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32111