fix quote error

FBSeletronica · FBSeletronica · commit 27703f3156bc · 2021-03-08T10:32:37.000-03:00
diff --git a/ports/esp32s2/boards/franzininho_wifi_wrover/mpconfigboard.mk b/ports/esp32s2/boards/franzininho_wifi_wrover/mpconfigboard.mk
@@ -1,6 +1,6 @@
 USB_VID = 0x303A
 USB_PID = 0x80AD
-USB_PRODUCT = "Franzininho WIFI w/Wrover
+USB_PRODUCT = "Franzininho WIFI w/Wrover"
 USB_MANUFACTURER = "Espressif"
 
 INTERNAL_FLASH_FILESYSTEM = 1
