Change in coreboot[master]: soc/intel/{icl,tgl,jsl,ehl}: add LPIT support

[Lance Zhao (Code Review)]

Lance Zhao has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/49048 )

Change subject: soc/intel/{icl,tgl,jsl,ehl}: add LPIT support
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Patch Set 5: Code-Review+1

I didn't check JSL and EHL, but 0x193C is right on all other silicon