add more logging to host stack

tested host with lpc4357, don't use fpu with lpc m4 since it seems to
cause hardfault (stack does not make use of fpu anyway).

src/host/usbh.h

@@ -52,6 +52,10 @@ typedef enum tusb_interface_status_{
 } tusb_interface_status_t;
 
 typedef struct {
+  #if CFG_TUSB_DEBUG >= 2
+  char const* name;
+  #endif
+
   uint8_t class_code;
 
   void (* const init) (void);