Change in coreboot[master]: soc/intel/{skl,cnl,icl,jsl,elh,tgl}: make XTAL in s0ix conditional

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/45723 )

Change subject: soc/intel/{skl,cnl,icl,jsl,elh,tgl}: make XTAL in s0ix conditional
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Patch Set 2: Code-Review+1