The Zephyr SDK distributes a device-tree-compiler with version
"1.4.6-dirty". As of recently, we have started using flags that are
only present in recent versions of dtc. Like the flag "-E
unit_address_vs_reg".
Users that are opting out of using the Zephyr SDK's host tools are
reporting obscure error messages.
To avoid this we use an appropriate error message when the detected
version is unsupported.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
d5754d3d0d