The cc2538-node.resc script was vulnerable to changing the position of
the vector table.
It also had a wrong hardcoded value. Now it will automatically verify
the position of the `vectors` symbol and set the vtor position
accordingly.
This sample allows to run two connected TI CC23538DK nodes, connected
via radio, in the Renode Framework. The emulation loads the compiled
binaries for client and server nodes. It also fetches a precompiled
bootloader.