ARM: dts: Drop custom hwmod property for omap5 i2c

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the custom ti,hwmods dts property. We have already
dropped the platform data earlier, but have been still allocating it
dynamically, which is no longer needed.
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap5-l4.dtsi

@@ -1405,7 +1405,6 @@ gpio6: gpio@0 {
 
 		target-module@60000 {			/* 0x48060000, ap 23 24.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "i2c3";
 			reg = <0x60000 0x8>,
 			      <0x60010 0x8>,
 			      <0x60090 0x8>;
@@ -1582,7 +1581,6 @@ uart4: serial@0 {
 
 		target-module@70000 {			/* 0x48070000, ap 30 14.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "i2c1";
 			reg = <0x70000 0x8>,
 			      <0x70010 0x8>,
 			      <0x70090 0x8>;
@@ -1614,7 +1612,6 @@ i2c1: i2c@0 {
 
 		target-module@72000 {			/* 0x48072000, ap 32 1c.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "i2c2";
 			reg = <0x72000 0x8>,
 			      <0x72010 0x8>,
 			      <0x72090 0x8>;
@@ -1654,7 +1651,6 @@ target-module@78000 {			/* 0x48078000, ap 39 12.0 */
 
 		target-module@7a000 {			/* 0x4807a000, ap 81 2c.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "i2c4";
 			reg = <0x7a000 0x8>,
 			      <0x7a010 0x8>,
 			      <0x7a090 0x8>;
@@ -1686,7 +1682,6 @@ i2c4: i2c@0 {
 
 		target-module@7c000 {			/* 0x4807c000, ap 83 34.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "i2c5";
 			reg = <0x7c000 0x8>,
 			      <0x7c010 0x8>,
 			      <0x7c090 0x8>;