Change in coreboot[master]: Makefile.inc: Add the x86 bootblock as a regular cbfs file

[Arthur Heymans (Code Review)]

Attention is currently required from: Martin Roth, Marshall Dawson, Julius Werner, Kyösti Mälkki, Yu-Ping Wu, Felix Held.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56122 )

Change subject: Makefile.inc: Add the x86 bootblock as a regular cbfs file
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Patch Set 9:

(1 comment)

File src/arch/x86/Makefile.inc:

https://review.coreboot.org/c/coreboot/+/56122/comment/88aa0a63_dc309197 
PS9, Line 107: bootblock-options := $(TS_OPTIONS) $(TXTIBB)
> Can't we just put the -b here as well (maybe if you use = instead of := )? Or is there no way to make the whole Makefile evaluation order work out with that? Hardcoding this special case into cbfs-add-to-region is pretty ugly (and honestly, if the bootblock needs to be so special that it needs a hardcoded special case in there, maybe it shouldn't be using the cbfs-files framework after all?).

I can't seem to get the Makefile evaluation order work with that. I guess it's fine to add the bootblock cbfsfile separately as cbfs files are allocated top down.