Change in coreboot[master]: src/lib/prog_loaders: Add preload_ramstage

[Patrick Georgi (Code Review)]

Attention is currently required from: Raul Rangel, Martin Roth, Julius Werner, Rob Barnes.
Patrick Georgi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/58982 )

Change subject: src/lib/prog_loaders: Add preload_ramstage
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Patch Set 3:

(1 comment)

File Makefile.inc:

https://review.coreboot.org/c/coreboot/+/58982/comment/d13d9a07_0f6fcfb3 
PS3, Line 1219: $(CONFIG_CBFS_PREFIX)/ramstage-align := 64
> `ramstage-align` is not set in that case. […]

Minimum alignment for file data is unspecified.
CBFS file headers are aligned to 64byte boundaries, and are typically sized in multiples of 4. File data follows headers so there's currently an implicit and unofficial file data alignment to 4 bytes.