Change in coreboot[master]: soc/intel/alderlake: Add tcss code

[Paul Menzel (Code Review)]

Attention is currently required from: V Sowmya, Furquan Shaikh, Rizwan Qureshi, Sridhar Siricilla, Tim Wawrzynczak, Deepti Deshatty, Patrick Rudolph.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52188 )

Change subject: soc/intel/alderlake: Add tcss code
......................................................................

Patch Set 5:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/52188/comment/07dea18a_177c1b02 
PS5, Line 9: Changes to enable TCSS mux configuration during boot time.
           : Additionally enable FSP 'MultiPhaseSilicon' init to execute
           : TCSS mux configuration during boot.
Please use 72 characters per line. Do not wrap lines after a sentence, or add a blank line between paragraphs.