feat(linux): AM62DX: Add migration guide and enable it in TOC

- Add Release Specific Migration Guide for AM62D SDK versions
- Document migration information for 11.02.08.02 and 11.01.05.03 releases
- Enable Release_Specific_Migration_Guide in table of contents

Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>

Author: paresh-bhagat12

configs/AM62DX/AM62DX_linux_toc.txt

@@ -7,7 +7,7 @@ devices/AM62DX/linux/Release_Specific
 devices/AM62DX/linux/Release_Specific_Release_Notes
 devices/AM62DX/linux/Release_Specific_Build_Sheet
 devices/AM62DX/linux/Release_Specific_Yocto_layer_Configuration
-#devices/AM62DX/linux/Release_Specific_Migration_Guide
+devices/AM62DX/linux/Release_Specific_Migration_Guide
 #devices/AM62DX/linux/Release_Specific_Kernel_Performance_Guide
 #devices/AM62DX/linux/Linux_Performance_Guide
 #devices/AM62DX/linux/RT_Linux_Performance_Guide

source/devices/AM62DX/linux/Release_Specific_Migration_Guide.rst

@@ -0,0 +1,38 @@
+###############
+Migration Guide
+###############
+
+.. rubric:: Overview
+
+This page covers migration information for applications built on top
+of the Processor SDK Linux AM62D.
+
+****************************************
+Processor SDK Linux AM62D 11.xx Releases
+****************************************
+
+Processor SDK 11.02.08.02
+=========================
+- This is the second reference release on the 2025 LTS stream with 6.12 Kernel, 2025.01 U-Boot and Yocto Scarthgap/5.0
+- ATF 2.13+
+- OPTEE 4.7.0
+- Yocto Scarthgap/5.0
+- Platforms Supported : AM62Dx (HS-FS, HS-SE) : `AM62D-EVM <https://www.ti.com/tool/AUDIO-AM62D-EVM>`__
+
+Processor SDK 11.01.05.03
+=========================
+- This is the first reference release on the 2025 LTS stream with 6.12 Kernel, 2025.01 U-Boot and Yocto Scarthgap/5.0
+- ATF 2.13+
+- OPTEE 4.6.0
+- Yocto Scarthgap/5.0
+- Platforms Supported : AM62Dx (HS-FS, HS-SE) : `AM62D-EVM <https://www.ti.com/tool/AUDIO-AM62D-EVM>`__
+
+.. note::
+
+   - For U-Boot builds, k3-image-gen and core-secdev-k3 are no longer needed
+     as **binman** is used instead. Please refer to :ref:`U-Boot build
+     instructions<Build-U-Boot-label>` for the updated steps.
+
+   - For Linux builds, generic ``defconfig`` is used instead of custom
+     fragments. Please refer to :ref:`Kernel doc<preparing-to-build>` for
+     build instructions.