Merge patch series "Add DM firmware reserved memory support"

Paresh Bhagat <[email protected]> says:

This series adds support for DM firmware reserved memory fixup in device
tree for K3 SoCs that use separate DM firmware (K3_DM_FW enabled).

The series includes:
1. Fix for phandle corruption in FDT reserved memory fixup
2. Enable OF_SYSTEM_SETUP for AM62D2 to allow device tree fixups
3. Add Kconfig options for DM firmware reserved memory for other K3 SoCs
4. Add DM reserved memory fixup implementation

The main issue being addressed is that the current reserved DDR carveout
for DM firmware in device tree is insufficient to accommodate the DM
firmware binary on AM62A7, and potentially other K3 SoCs in the future.

Currently, the size is only modified for AM62A7 SoC. For rest of SocS
existing values from device tree is taken.

For vendor boards, please verify boot and check for errors if any.

This series depends on dts update for effected devices. If "dm" node is
not found then the existing mechanism creates a new node with same
address, which cause memory overlap issue.

Link: https://lore.kernel.org/r/[email protected]

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