On the current version of the nRF5 SDK we could only use up to 3 instances due to the hardware limitation on the Engineering A of the silicon,
but now that the hardware has a new SPIM available on the Engineering B, so it should be possible to have up to 4 instances running, but the nRF5 SDK offers no support yet to handle the SPIM3,
Is there a workaround to get the fourth SPIM3 working? When it will be available to configure with the nRF5 SDK?