Added missing SPI_HAS_TRANSACTION define, so libraries can tell that …#421

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Wenn0101 merged 1 commit intosparkfun:devfrom

Lauszus:spi_has_transaction

Sep 9, 2021

Commits on Aug 15, 2021

Added missing SPI_HAS_TRANSACTION define, so libraries can tell that the API is available
Lauszus
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