Change in coreboot[master]: soc/intel/{adl,tgl,jsl}: Add smihandler_soc_disable_busmaster

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Furquan Shaikh, Kane Chen, Karthik Ramasubramanian.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52873 )

Change subject: soc/intel/{adl,tgl,jsl}: Add smihandler_soc_disable_busmaster
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Patch Set 5: Code-Review+2

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/52873/comment/af0fc47b_89f4520a 
PS5, Line 20: 
nit: `TEST=...` please add how you tested this

File src/soc/intel/alderlake/smihandler.c:

https://review.coreboot.org/c/coreboot/+/52873/comment/35c79c5e_c3e97d19 
PS5, Line 28: {
a small comment referencing why this is done at the top of these functions would be helpful