test: improve withdrawal compatibility in functional test feature_ass…

…et_locks.py

It imports private keys to node wallet and easier to see withdrawals in Dash Core

test/functional/feature_asset_locks.py

@@ -44,6 +44,7 @@
     get_bip9_details,
     hex_str_to_bytes,
 )
+from test_framework.wallet_util import bytes_to_wif
 
 llmq_type_test = 106 # LLMQType::LLMQ_TEST_PLATFORM
 tiny_amount = int(Decimal("0.0007") * COIN)
@@ -260,6 +261,8 @@ def run_test(self):
 
         key = ECKey()
         key.generate()
+        privkey = bytes_to_wif(key.get_bytes())
+        node_wallet.importprivkey(privkey)
         pubkey = key.get_pubkey().get_bytes()
 
         self.test_asset_locks(node_wallet, node, pubkey)