Hardware bug - wrong silkscreen labelling on DevKit

[mpetitjean]

I recently purchased a Omega2s Dev Kit on Mouser (link).

The only marking that could indicate a version number is 50 18 marked on the silkscreen next to the Omega label (below the Wi-Fi antenna).

The pins SPI_CS0 and SPI_MISO and wrongly labelled on the Dev Kit, leading to quite a confusion on my end when trying to prototype with an SPI chip.

The next revision of the Dev Kit (if planned) should swap the labels, and the documentation of the Dev Kit should be updated to warn future users.