Before this commit `Keycard.generateAndLoadKey` and
`Keyacrd.getKeys` methods returned wallet root key address and public
key in "address" and "public-key" fields correspondingly. This caused
discrepancy in the way how keys were used for on-device and keycard
accounts in Status app. For on-device accounts master key address
was used as account's deterministic id, when keycard accounts used
wallet root key address for this purpose.