Betaflight 4.3.1

What's Changed

Improvements

• Only write to FLASH once 64 bytes are buffered #11697 by @SteveCEvans in #11725
• Add ICM42688P for all unified builds by @SteveCEvans in #11728

Fixes

• Ghost rssi fix by @daleckystepan in #11693
• Backport Ghost jitter fix #11234 by @daleckystepan in #11724
• Fix data overwriting in VCP_DataTx on F4 #11713 by @daleckystepan in #11726
• Make sure to write dshot stop cmd to all other motors when targeting … by @RoarFPV in #11727
• Fix compilation error when USE_RX_MSP_OVERRIDE by @hydra in #11730

Targets

• Add STM32F411SX1280 unified target by @SteveCEvans in #11729

Full Changelog: 4.3.0...4.3.1