tinyusb: fix idfgh-6508: return type in tu_fifo_peek_n() See merge request espressif/esp-idf!16858
@@ -1 +1 @@
-Subproject commit 68f6ef679000f9cd22b20af7473d7f0480d2862e
+Subproject commit c1986586098643edfa6b75a776299c576ad0ce8b