Support for CS active high#258

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tfnil wants to merge 5 commits intoeblot:masterfrom

tfnil:cs_act_hi

Commits on Jul 10, 2021

Commits on Aug 24, 2021

SPI: better API for CS active high
tfnil
committed

Commits on Aug 25, 2021

SPI: fix unit test for CS active high
tfnil
committed