Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/s3c64xx',...

Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof', 'spi/topic/sirf' and 'spi/topic/sun6i' into spi-next