Radio upgrade: Point updater to a binary which is fully MAVLink 2.0 enabled, including radio status.

This adds support for the full-sized FMUv4PRO design and the FMUv5 STM32F7 based generation.

Instead of hardcoded "QGroundContorl" strings

Changed Joystick._exponential from bool to float. It can now be set between 0 and -0.5 by user using a slider.

This makes VehicleComponents reusable from core plugin without
requiring override of prerequisiteSetup

This reverts commit 7131a12e.