boot: Support for nrf52840 with ecc keys and cryptocell
boot: Support for nrf52840 with ecc keys and cryptocell

Added traslation for cryptocell peripheral for use with chip
without TrustZone.

Signed-off-by: Piotr Ciura <89afa435a52dc2f9890cc184ae1c36040d3cd2b4@nordicsemi.no>

utzig/mcuboot,tamban01/mcuboot,utzig/mcuboot,tamban01/mcuboot,runtimeco/mcuboot,utzig/mcuboot,tamban01/mcuboot,utzig/mcuboot,ATmobica/mcuboot,tamban01/mcuboot,runtimeco/mcuboot,runtimeco/mcuboot,runtimeco/mcuboot,ATmobica/mcuboot,utzig/mcuboot,ATmobica/mcuboot,ATmobica/mcuboot,ATmobica/mcuboot,runtimeco/mcuboot,tamban01/mcuboot