test: skip tool_wallet test when bitcoin-wallet isn't compiled

test/config.ini.in

@@ -16,6 +16,7 @@ RPCAUTH=@abs_top_srcdir@/share/rpcauth/rpcauth.py
 # Which components are enabled. These are commented out by `configure` if they were disabled when running config.
 @ENABLE_WALLET_TRUE@ENABLE_WALLET=true
 @BUILD_BITCOIN_CLI_TRUE@ENABLE_CLI=true
+@BUILD_BITCOIN_WALLET_TRUE@ENABLE_WALLET_TOOL=true
 @BUILD_BITCOIND_TRUE@ENABLE_BITCOIND=true
 @ENABLE_FUZZ_TRUE@ENABLE_FUZZ=true
 @ENABLE_ZMQ_TRUE@ENABLE_ZMQ=true