net/mlx5: fix thread termination check on Windows

[ upstream commit 5976328 ]

The mlx5_is_thread_alive function always returns false
(terminated) regardless to the actual thread state.

Fixed to return the correct thread state.

Bugzilla ID: 1089
Fixes: 5d55a49 ("net/mlx5: split multi-thread flow handling per OS")

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

drivers/net/mlx5/windows/mlx5_flow_os.c

@@ -262,7 +262,7 @@ mlx5_is_thread_alive(HANDLE thread_handle)
 
 	if (result == WAIT_OBJECT_0)
 		return false;
-	return false;
+	return true;
 }
 
 static int