Implement dcd_edpt_close_all() for Renesas RX family

src/portable/renesas/usba/dcd_usba.c

@@ -733,10 +733,16 @@ bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const * ep_desc)
   return true;
 }
 
-void dcd_edpt_close_all (uint8_t rhport)
+void dcd_edpt_close_all(uint8_t rhport)
 {
-  (void) rhport;
-  // TODO implement dcd_edpt_close_all()
+  unsigned i = TU_ARRAY_SIZE(_dcd.pipe);
+  dcd_int_disable(rhport);
+  while (--i) { /* Close all pipes except 0 */
+    const unsigned ep_addr = _dcd.pipe[i].ep;
+    if (!ep_addr) continue;
+    dcd_edpt_close(rhport, ep_addr);
+  }
+  dcd_int_enable(rhport);
 }
 
 void dcd_edpt_close(uint8_t rhport, uint8_t ep_addr)