Argument 'signed' was added in [1] and become available since v2.10.63.
Therefore using bytes2integer() and integer2bytes() from construct.core
bumps the minimum required version of construct to v2.10.63. For
instance, debian:bullseye currently ships v2.10.58.
There is no strict requirement to use construct's API, so let's use
Python's API instead. This allows using older construct versions
from the v2.9.xx family.
Change-Id: I613dbfebe993f9c19003635371941710fc1b1236
Related: [1] 660ddbe2d9a351731ad7976351adbf413809a715 construct.git
Related: OS#5666