arm: imx6q: Add devicetree support for Engicam i.CoreM6 DualLite/Solo

i.CoreM6 DualLite/Solo modules are system on module solutions
manufactured by Engicam with following characteristics:
CPU           NXP i.MX6 DL, 800MHz
RAM           1GB, 32, 64 bit, DDR3-800/1066
NAND          SLC,512MB
Power supply  Single 5V
MAX LCD RES   FULLHD

and more info at
http://www.engicam.com/en/products/embedded/som/sodimm/i-core-m6s-dl-d-q

Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index 5d549bd..e2431a8 100644
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -98,6 +98,7 @@
 config TARGET_MX6Q_ICORE
 	bool "Support Engicam i.Core"
 	select MX6QDL
+	select OF_CONTROL
 	select DM
 	select DM_THERMAL
 	select SUPPORT_SPL