These represent the 8 kinds of implementation functionality
that up until now were inferred by the 16 remaining cpu_...()
tests in the omap i2c driver.

Changed to use BIT() as suggested by Balaji T Krishnamoorthy.

Cc: patches@linaro.org
Cc: Ben Dooks <ben-linux@fluff.org>
Reported-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndy Green <andy.green@linaro.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>