Import KeyOriginData when importing descriptors

Summary:
Partial backport of Core PR14021
https://github.com/bitcoin/bitcoin/pull/14021/commits/02d6586d7a0f1a0886010e733760ce59cf0935c3

Depends on D6229

Test Plan:

ninja
ninja check

Reviewers: O1 Bitcoin ABC, #bitcoin_abc, deadalnix

Reviewed By: O1 Bitcoin ABC, #bitcoin_abc, deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D6230