Potential Issue: MAVLinkX on Tx causes crash

[jlpoltrack]

MAVLinkX seems to cause Tx to crash when there is a serial stream in one situation:

1. When using STM32 F1 with GCC 12 (ST made default with latest 1.15.0 CubeIDE)

Potential areas to explore:

https://github.com/olliw42/mLRS/blob/main/mLRS/Common/thirdparty/mavlinkx.h#L19-L21

https://github.com/olliw42/mLRS/blob/main/mLRS/CommonTx/mavlink_interface_tx.h#L288-L293

[olliw42]

@jlpoltrack
point 2. has evaporated, right?

[jlpoltrack]

@jlpoltrack point 2. has evaporated, right?

Yes, edited first post accordingly.