Add Synchronous Audio Interface(SAI) node for Engicam GEAM6UL
and Is.IoT MX6UL variant module boards.

Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This patch add support for lcdif backlight on GEAM6UL
variant boards.

Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The license text has been mangled at some point then copy pasted across
multiple files. Restore it to what it should be.
Note that this is not intended as a license change.
Reviewed-by: NHeiko Schocher <hs@denx.de>
Acked-by: NMarcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NAfzal Mohammed <afzal.mohd.ma@gmail.com>
Acked-by: NMichael Trimarchi <michael@amarulasolutions.com>
Acked-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

IMX6UL GEA M6UL modules are system on module solutions manufactured
by Engicam with following characteristics:
Processor	Freescale i.MX 6UltraLite MCIMX6G2, 528 MHz
RAM		128MB, 16-bit DDR3
NAND SLC	256MB
Power supply	Single 5V
MAX LCD RES	up to WXGA, 1366x768

and more info at
http://www.engicam.com/prodotti/embedded/som/sodimm/gea-m6ul

Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NMatteo Lisi <matteo.lisi@engicam.com>
Signed-off-by: NMichael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>