scripted-diff: validateaddress to getaddressinfo in tests

Change all instances of validateaddress to getaddressinfo since it seems that
no test actually uses validateaddress for actually validating addresses.

-BEGIN VERIFY SCRIPT-
find ./test/functional -path '*py' -not -path ./test/functional/wallet_disable.py -not -path ./test/functional/rpc_deprecated.py -not -path ./test/functional/wallet_address_types.py -exec sed -i'' -e 's/validateaddress/getaddressinfo/g' {} \;
-END VERIFY SCRIPT-

test/functional/wallet_keypool_topup.py

@@ -68,7 +68,7 @@ class KeypoolRestoreTest(BitcoinTestFramework):
         assert_equal(self.nodes[1].listtransactions()[0]['category'], "receive")
 
         # Check that we have marked all keys up to the used keypool key as used
-        assert_equal(self.nodes[1].validateaddress(self.nodes[1].getnewaddress())['hdkeypath'], "m/0'/0'/110'")
+        assert_equal(self.nodes[1].getaddressinfo(self.nodes[1].getnewaddress())['hdkeypath'], "m/0'/0'/110'")
 
 if __name__ == '__main__':
     KeypoolRestoreTest().main()