This patch fixes the following DTC warnings for omap3-overo-summit.dtb,
omap3-overo-storm-tobi.dtb, omap3-overo-storm-summit.dtb and
omap3-overo-tobi.dtb:

"encoder@0 has a unit name, but no reg property"
"endpoint@0 has a unit name, but no reg property"
"connector@0 has a unit name, but no reg property"
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>