spi/fsl-espi: Add Power Management support for eSPI controller
spi/fsl-espi: Add Power Management support for eSPI controller

Add PM support for eSPI controller using callback function suspend
and resume in .driver.pm of platform_driver.

Signed-off-by: Hou Zhiqiang <1d36c69b521b0b6ca50fbb2fdd5ae7603d7991f9@freescale.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs