ARM: dts: am335x: Fix UARTs length

As seen on the AM335x TRM all the UARTs controller only are 0x1000 in size.
Fix this in the DTS.
Signed-off-by: Emmanuel Vadot <manu@freebsd.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am33xx-l4.dtsi

@@ -185,7 +185,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart0: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <72>;
 				status = "disabled";
 				dmas = <&edma 26 0>, <&edma 27 0>;
@@ -934,7 +934,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart1: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <73>;
 				status = "disabled";
 				dmas = <&edma 28 0>, <&edma 29 0>;
@@ -966,7 +966,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart2: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <74>;
 				status = "disabled";
 				dmas = <&edma 30 0>, <&edma 31 0>;
@@ -1614,7 +1614,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart3: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <44>;
 				status = "disabled";
 			};
@@ -1644,7 +1644,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart4: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <45>;
 				status = "disabled";
 			};
@@ -1674,7 +1674,7 @@ SYSC_OMAP2_SOFTRESET |
 			uart5: serial@0 {
 				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				clock-frequency = <48000000>;
-				reg = <0x0 0x2000>;
+				reg = <0x0 0x1000>;
 				interrupts = <46>;
 				status = "disabled";
 			};