Enable ChainLocks after quorums have been created

Creating 4 quorums causes a lot of blocks to be created and signed by
ChainLocks, which then causes timeouts later.

Author: codablock

test/functional/llmq-chainlocks.py

@@ -29,13 +29,14 @@ def run_test(self):
         sync_blocks(self.nodes, timeout=60*5)
 
         self.nodes[0].spork("SPORK_17_QUORUM_DKG_ENABLED", 0)
-        self.nodes[0].spork("SPORK_19_CHAINLOCKS_ENABLED", 0)
         self.wait_for_sporks_same()
 
         self.log.info("Mining 4 quorums")
         for i in range(4):
             self.mine_quorum()
 
+        self.nodes[0].spork("SPORK_19_CHAINLOCKS_ENABLED", 0)
+
         self.log.info("Mine single block, wait for chainlock")
         self.nodes[0].generate(1)
         self.wait_for_chainlocked_block_all_nodes(self.nodes[0].getbestblockhash())