Though the keyboard and other driver will continue to support the legacy
"gpio-key,wakeup", "linux,wakeup" and "enable-sdio-wakeup" boolean
property to enable the wakeup source, "wakeup-source" is the new
standard binding.

This patch replaces all the legacy wakeup properties with the unified
"wakeup-source" property in order to avoid any futher copy-paste
duplication.

Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: NSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

SBC-iMX7 is a single board computer designed for industrial
and embedded applications. It is based on the Freescale i.MX7
system-on-chip. SBC-iMX7 is implemented with the CL-SOM-iMX7
System-on-Module providing most of the functions, and SB-SOM-iMX7
carrier board providing additional peripheral functions and
connectors.

http://www.compulab.co.il/products/sbcs/sbc-imx7-freescale-i-mx-7-single-board-computer/

http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module/

Add basic board support, including SD card as a secondary boot and storage device
Signed-off-by: NIlya Ledvich <ilya@compulab.co.il>
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>