Use latest version of usb-device and usbd-serial

Author: eivindbergem

CHANGELOG.md

@@ -27,6 +27,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Use gpio field enums internally [#506]
 - Unmacro `dma.rs` [#505]
 - Rework USART remap, 
+- Updated `usb-device` and `usbd-serial` to latest versions
 
 ### Added
 

Cargo.toml

@@ -61,8 +61,8 @@ cortex-m-rtic = "1.1.3"
 cortex-m-semihosting = "0.5.0"
 heapless = "0.7.16"
 mfrc522 = "0.5.0"
-usb-device = "0.2.8"
-usbd-serial = "0.1.1"
+usb-device = "0.3.2"
+usbd-serial = "0.2.2"
 
 [features]
 doc = []