[dice] Update DICE_PRIVATE_KEY_SIZE to DICE_PRIVATE_KEY_BUFFER_SIZE am: e9867a071a Original change: https://android-review.googlesource.com/c/trusty/lib/+/3367823 Change-Id: I488d8e2040d2a95a00fd42b7fc32b222f2fb03df Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>