Change in coreboot[master]: soc/intel/common: Implement IOC driver

[Paul Menzel (Code Review)]

Attention is currently required from: Jamie Ryu, Wonkyu Kim, Ethan Tsao, Ravishankar Sarawadi, Tim Wawrzynczak, Angel Pons, Nick Vaccaro.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63198 )

Change subject: soc/intel/common: Implement IOC driver
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Patch Set 17:

(2 comments)

File src/soc/intel/common/block/ioc/ioc.c:

https://review.coreboot.org/c/coreboot/+/63198/comment/d0d26b57_250744a4 
PS17, Line 36: 	if(mchbar)
Please add a blank line above.

https://review.coreboot.org/c/coreboot/+/63198/comment/73100f6c_5515479f 
PS17, Line 44: 	data32 = ioc_reg_read32(offset);
Ditto.