sim: Pass through unknown sockopt to system.

Remove the interception of unknown levels and option names in sim usrsock.
This allows the system socket interface to handle them and return the correct error codes or behavior, rather than returning a generic error locally.

Signed-off-by: liqinhui <liqinhui@xiaomi.com>

arch/sim/src/sim/posix/sim_hostusrsock.c

@@ -188,7 +188,7 @@ static int optname_to_native(int optname)
 
       default:
         syslog(LOG_ERR, "Invalid optname: %x\n", optname);
-        return -1;
+        return -ENOPROTOOPT;
     }
 }
 
@@ -198,6 +198,10 @@ static int host_usrsock_sockopt(int sockfd, int level, int optname,
 {
   int ret = -EINVAL;
 
+  /* For the parameters that nuttx does not support,
+   * return the ENOPROTOOPT.
+   */
+
   if (level == NUTTX_SOL_SOCKET)
     {
       level = SOL_SOCKET;
@@ -216,13 +220,13 @@ static int host_usrsock_sockopt(int sockfd, int level, int optname,
     }
   else
     {
-      return ret;
+      return -ENOPROTOOPT;
     }
 
   optname = optname_to_native(optname);
   if (optname < 0)
     {
-      return ret;
+      return optname;
     }
 
   if (set)