Correct some descriptions of IRemotelyProvisionedComponent

- STATUS_TEST_KEY_IN_PRODUCTION_REQUEST is still required for V3
- PubKeyEcdhP256 & PubKeyX25519 are unused in V3
- SignedDataSigStruct and DiceChainEntryInput should be an cbor array
  when being the input of PureEd25519/ECDSA

Bug: 243454124
Test: VtsHalRemotelyProvisionedComponentTargetTest
Change-Id: Ice400bb15413eac164f2630cc2fbb66e6d3624b1