ARM: dts: am437x: cm-t43: remove unneded unit names

This patch fixes the following DTC warnings for am437x-sbc-t43.dtb:

"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>