* Convert both smp and selftest to crypto kpp API
* Remove module ecc as no more required
* Add ecdh_helper functions for wrapping kpp async calls

This patch has been tested *only* with selftest, which is called on
module loading.
Signed-off-by: NSalvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>