arm64: dts: ti: k3-am62a-main: Fix the reg-range for main_pktdma

For main_pktdma node, the TX Channel Realtime Register region 'tchanrt'
is 128KB and Ring Realtime Register region 'ringrt' is 2MB as shown in
memory map in the TRM[0] (Table 2-1).
So fix ranges for those register regions.

[0]: <https://www.ti.com/lit/pdf/spruj16>

Fixes: 3dad70de ("arm64: dts: ti: k3-am62a-main: Add more peripheral nodes")
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20240430105253.203750-3-j-choudhary@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-am62a-main.dtsi

@@ -120,8 +120,8 @@ main_pktdma: dma-controller@485c0000 {
 			compatible = "ti,am64-dmss-pktdma";
 			reg = <0x00 0x485c0000 0x00 0x100>,
 			      <0x00 0x4a800000 0x00 0x20000>,
-			      <0x00 0x4aa00000 0x00 0x40000>,
-			      <0x00 0x4b800000 0x00 0x400000>,
+			      <0x00 0x4aa00000 0x00 0x20000>,
+			      <0x00 0x4b800000 0x00 0x200000>,
 			      <0x00 0x485e0000 0x00 0x10000>,
 			      <0x00 0x484a0000 0x00 0x2000>,
 			      <0x00 0x484c0000 0x00 0x2000>,