[dice] Add DiceKdf wrapper to libdiced_open_dice

This function will be used to derived the sealing key for
encrypted storage in Microdroid later.

Bug: 267575445
Test: atest libdiced_open_dice_nostd.integration_test \
libdiced_open_dice.integration_test \
diced_open_dice_cbor_test

Change-Id: I7c2e2eb49c3942a3d0c67f076d311a939da754d4
4 files changed