Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/dw',...

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/dw', 'spi/fix/img-spfi', 'spi/fix/pl022' and 'spi/fix/ti-qspi' into spi-linus