Intermediate Memory Layout Update to Accommodate Larger App Size and Upcoming Secure Boot Changes

[ayodejiige]

Intermediate Memory Layout Update to Accommodate Larger App Size and Upcoming Secure Boot Changes. The following changes have been made to accommodate this:

1. Update RAM region and size for bootloader code and data.
2. Increase RAM region for data to accommodate future bootloader changes.
3. Limit flash usage to max allowed bootloader code size.
4. Update hardcoded __bootable_region_descriptors_address symbol to use memory layout variables

[Copilot]

Pull Request Overview

This PR updates the memory layout configuration to accommodate a larger bootloader size and prepare for upcoming secure boot changes. The changes optimize memory allocation by adjusting RAM regions and limiting flash usage to the maximum allowed bootloader code size.

• Updates RAM regions (IRAM and RAM) with new origins and increased sizes
• Reduces FLASH region length from 1M to 24K to match bootloader size limits
• Replaces hardcoded descriptor address with calculated value using memory layout variables

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