[miosix] Updated submodule for DeathStackV2 changes

miosix-kernel @ e2eb4765

-Subproject commit 441aca88b44e5438e04abbef1639cd7f9df7bb37
+Subproject commit e2eb4765edab6108b053ab1e60dd058be264d3e7

src/tests/drivers/test-mavlink.cpp

@@ -52,7 +52,8 @@ MavDriver* mavlink;
  */
 int main()
 {
-    transceiver = new SerialTransceiver();
+    STM32SerialWrapper serial(USART1, USARTInterface::Baudrate::B19200);
+    transceiver = new SerialTransceiver(serial);
     mavlink = new MavDriver(transceiver, nullptr, silenceAfterSend, maxPktAge);
 
     mavlink->start();