Change in coreboot[master]: util/sconfig: Add support for discontiguous FW_CONFIG fields

[Duncan Laurie (Code Review)]

Attention is currently required from: Furquan Shaikh, Martin Roth, Tim Wawrzynczak, Duncan Laurie.
Duncan Laurie has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52747 )

Change subject: util/sconfig: Add support for discontiguous FW_CONFIG fields
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Patch Set 4:

(3 comments)

File Documentation/lib/fw_config.md:

https://review.coreboot.org/c/coreboot/+/52747/comment/2b5d53fe_ef067d8d 
PS4, Line 134: 2
should this be end-bit1?  (to be consistent with the first set of start-bit0/end-bit0

https://review.coreboot.org/c/coreboot/+/52747/comment/7d3bcffc_f0640f94 
PS4, Line 139: 	
this is a tab when the others are spaces.  (it probably all works out in markdown format)

https://review.coreboot.org/c/coreboot/+/52747/comment/3dba0962_77e0a6dc 
PS4, Line 141: 	
remove this tab to align?