Added debug logging to ProviderSpi.cpp on writes. (#213)
Added debug logging to ProviderSpi.cpp on writes. (#213)

* Added debug logging to ProviderSpi.cpp on writes.
If you have more leds configured than the SPI buffer can support you now get this:
[HYPERIOND LedDevice] <DEBUG> <ProviderSpi.cpp:92:writeBytes()> SPI failed to write. errno: 90, Message too long

* changed debug to error

redPanther/hyperion.ng,redPanther/hyperion.ng,penfold42/hyperion.ng,Funatiq/hyperion.ng,hyperion-project/hyperion.ng,hyperion-project/hyperion.ng,Funatiq/hyperion.ng,hyperion-project/hyperion.ng,Funatiq/hyperion.ng,redPanther/hyperion.ng,Funatiq/hyperion.ng,penfold42/hyperion.ng,penfold42/hyperion.ng,penfold42/hyperion.ng,penfold42/hyperion.ng,hyperion-project/hyperion.ng,redPanther/hyperion.ng,redPanther/hyperion.ng,hyperion-project/hyperion.ng,Funatiq/hyperion.ng,Funatiq/hyperion.ng,penfold42/hyperion.ng,hyperion-project/hyperion.ng,redPanther/hyperion.ng