ASoC: SOF: amd: add ASP carveout firmware loading for ACP7.B/7.F

ACP7.B and ACP7.F require signed firmware to be authenticated by the
AMD Security Processor (ASP) before the DSP can execute it. Implement
a new two-stage firmware load path via the ASP MPASP mailbox.

Stage 1 (probe time): query ASP for the physical base address and ATU
group assignment of a pre-allocated 32 MB MALL carveout region. If
ASP does not support carveout, probe fails immediately.

Stage 2 (load time): load the signed image from disk, send it to ASP
via VALIDATE_IMAGE; ASP authenticates the image and deposits the raw
binary into the carveout. The driver then SHA-DMAs the raw binary from
the carveout into DSP IRAM.

On D3->D0 resume the raw binary is preserved in the carveout; the
driver skips the filesystem load and ASP authentication and restores
directly from the saved carveout address.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20261013154644.3788064-10-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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