Renamed interface option set and get functions.
Added rate in ifGet for SPI.
Fixed config verification for serial and spi.
Changed bit macro, fixed include guard.
Fixed sequential SPI write and read requests.
Added initial SDIO over SPI: implemented init.
SDIO: CRC7 calc replaced with hardcoded values.
SDIO: refactored responses, added read function.
Fixed SDIO read function.
Added mutex locking to serialDma class.
Changed mutex locking in Spi class.
Refactored read and write funcs in SdioSpi class.