scripted-diff: rename cs_mapLocalHost -> g_maplocalhost_mutex

-BEGIN VERIFY SCRIPT-
s() { sed -i 's/cs_mapLocalHost/g_maplocalhost_mutex/g' $1; }
s src/net.cpp
s src/net.h
s src/rpc/net.cpp
s src/test/net_tests.cpp
-END VERIFY SCRIPT-

src/rpc/net.cpp

@@ -648,7 +648,7 @@ static RPCHelpMan getnetworkinfo()
     obj.pushKV("incrementalfee", ValueFromAmount(::incrementalRelayFee.GetFeePerK()));
     UniValue localAddresses(UniValue::VARR);
     {
-        LOCK(cs_mapLocalHost);
+        LOCK(g_maplocalhost_mutex);
         for (const std::pair<const CNetAddr, LocalServiceInfo> &item : mapLocalHost)
         {
             UniValue rec(UniValue::VOBJ);