Change in coreboot[master]: soc/intel/cmn/fast_spi: Add API to set SPI controller VCL

[Werner Zeh (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Angel Pons, Arthur Heymans, Lean Sheng Tan.
Werner Zeh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63626 )

Change subject: soc/intel/cmn/fast_spi: Add API to set SPI controller VCL
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Patch Set 2: Code-Review+1

(1 comment)

File src/soc/intel/common/block/fast_spi/fast_spi_def.h:

https://review.coreboot.org/c/coreboot/+/63626/comment/70397774_c7559372 
PS2, Line 135:  * Register Offsets of BIOS Vendor Specific Component Capabilities for
             :  * Component 0 Registers
Use singular here as it is just one register?
In Addition I would provide the abbreviation (VSCC) here as well.
But both is up to you (hence resolved).