qa: Premine to deterministic address with -disablewallet
Summary:
Partial backport of core PR14180 (commit faa669c):
https://github.com/bitcoin/bitcoin/pull/14180/commits/faa669cbcd1fc799517b523b0f850e01b11bf40a
Depends on D4447.
Test Plan:
test_runner.py --extended
Reviewers: #bitcoin_abc, deadalnix
Reviewed By: #bitcoin_abc, deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D4450