ARM: dts: remove dm816x invalid DT l3_main hwmod

Remove invalid l3_main hwmod entry from dm816x DT ocp node.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dm816x.dtsi

@@ -64,7 +64,6 @@ ocp {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
-		ti,hwmods = "l3_main";
 
 		prcm: prcm@48180000 {
 			compatible = "ti,dm816-prcm";