Check DSU public key with key revocation list

Throw RevocationListFetchException if failed to fetch key revocation
list.
Throw KeyRevokedException if DSU intent or image public key is revoked.
Throw PublicKeyException if getAvbPublicKey() failed.

Bug: 128892201
Test: adb shell am start-activity \
    -n com.android.dynsystem/com.android.dynsystem.VerificationActivity \
    -a android.os.image.action.START_INSTALL \
    --el KEY_USERDATA_SIZE 8192 \
    -d file:///storage/emulated/0/Download/aosp_arm64-dsu_test.zip \
    --es KEY_PUBKEY ${IMAGE_KEY}
Test: edit the code so that imageValidationThrowOrWarning() always
Test: throw and observe the logcat and device notification
Change-Id: I33733c019b305c45e7d2511c44ef1d9b446ea52e