made log line end consistent \r\n

src/portable/ehci/ehci.c

@@ -581,7 +581,7 @@ void qhd_xfer_complete_isr(ehci_qhd_t * qhd) {
         // clear halted bit if not caused by STALL to allow more transfer
         xfer_result = XFER_RESULT_FAILED;
         qtd_overlay->halted = false;
-        TU_LOG3("  QHD xfer err count: %d\n", qtd_overlay->err_count);
+        TU_LOG3("  QHD xfer err count: %d\r\n", qtd_overlay->err_count);
         // TU_BREAKPOINT(); // TODO skip unplugged device
       }else {
         // no error bits are set, endpoint is halted due to STALL
@@ -664,7 +664,7 @@ void hcd_int_handler(uint8_t rhport, bool in_isr) {
   if (int_status & EHCI_INT_MASK_HC_HALTED) {
     // something seriously wrong, maybe forget to flush/invalidate cache
     TU_BREAKPOINT();
-    TU_LOG1("  HC halted\n");
+    TU_LOG1("  HC halted\r\n");
     return;
   }