Merge remote-tracking branches 'spi/fix/bcm2835', 'spi/fix/bcm2835-code',...

Merge remote-tracking branches 'spi/fix/bcm2835', 'spi/fix/bcm2835-code', 'spi/fix/bitbang', 'spi/fix/fsl-cpm' and 'spi/fix/omap2-mcspi' into spi-linus