build: Generate ip_asn.dat.h during build process

This can be disabled with -DWITH_EMBEDDED_ASMAP=OFF.

test/config.ini.in

@@ -25,6 +25,7 @@ RPCAUTH=@abs_top_srcdir@/share/rpcauth/rpcauth.py
 @BUILD_BITCOIND_TRUE@ENABLE_BITCOIND=true
 @ENABLE_FUZZ_BINARY_TRUE@ENABLE_FUZZ_BINARY=true
 @ENABLE_ZMQ_TRUE@ENABLE_ZMQ=true
+@ENABLE_EMBEDDED_ASMAP_TRUE@ENABLE_EMBEDDED_ASMAP=true
 @ENABLE_EXTERNAL_SIGNER_TRUE@ENABLE_EXTERNAL_SIGNER=true
 @ENABLE_USDT_TRACEPOINTS_TRUE@ENABLE_USDT_TRACEPOINTS=true
 @ENABLE_IPC_TRUE@ENABLE_IPC=true