spi: imx: add function to check for IMX51 family controller

Similar to other controller type checks add check function for
IMX51. It includes IMX53 and IMX6.

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Anton Bondarenko 2015-12-05 17:57:02 +01:00 • committed by Mark Brown
commit f8a876176f