Update broadcom library

hw/mcu/broadcom

@@ -1 +1 @@
-Subproject commit 7a8f4b7471ad4aad2e808b3a4cc88b4c23b529f2
+Subproject commit 55cd6f798a45cac905d7bf81baa2bcbf7de7c42e

src/portable/broadcom/synopsys/dcd_synopsys.c

@@ -574,13 +574,13 @@ void dcd_init (uint8_t rhport)
 void dcd_int_enable (uint8_t rhport)
 {
   (void) rhport;
-  // BP_EnableIRQ(USB_IRQn);
+  BP_EnableIRQ(USB_IRQn);
 }
 
 void dcd_int_disable (uint8_t rhport)
 {
   (void) rhport;
-  // BP_DisableIRQ(USB_IRQn);
+  BP_DisableIRQ(USB_IRQn);
 }
 
 void dcd_set_address (uint8_t rhport, uint8_t dev_addr)