[S] Change in coreboot[master]: Makefile.inc: introduce all_x86 target

[Felix Held (Code Review)]

Attention is currently required from: Martin L Roth, Fred Reitberger, Kyösti Mälkki.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74150 )

Change subject: Makefile.inc: introduce all_x86 target
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Patch Set 3:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/74150/comment/6cadefd3_830c99a8 
PS2, Line 11: all
> single-quote for clarity

Done

https://review.coreboot.org/c/coreboot/+/74150/comment/d05bb3f0_8b8acf7c 
PS2, Line 14: omstage
> oxford comma

i think that the oxford comma looks quite bad, but i'm not the native english speaker here, so i'll just add it

https://review.coreboot.org/c/coreboot/+/74150/comment/606b6bb9_a47a6e95 
PS2, Line 14: verstage_x88
> _x86

Done