- Update to version 31.0.3p1
* Fixes boringssl build failure with GCC 11.2.1 (e86eabe)
* Add boot.img manipulation tools (#52)
* Add Dynamic Partition Tools (#51)

- Split parts of the main package into 'mkbootimg' and 'partition'
- Remove sub-package 'python3' (avbtool is now part of the main
package, mkbootimg part of the sub-package 'mkbootimg')
- Remove fix-install-python-tools.patch