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>

Add support to the Armadeus Systems APF6 Solo / Dual / Quad SoM and
the Armadeus Systems APF6Dev carrier board.

For more details see:
http://www.armadeus.com/english/products-processor_boards-apf6.html
http://www.armadeus.com/english/products-development_boards-apf6_dev.htmlSigned-off-by: NSébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>