Change in coreboot[master]: soc/intel/common/block/notify: Implement coreboot notify native driver

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Arthur Heymans, Felix Singer, Subrata Banik, Angel Pons, Sridhar Siricilla, Lean Sheng Tan, Werner Zeh, Patrick Rudolph, EricR Lai.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/60405 )

Change subject: soc/intel/common/block/notify: Implement coreboot notify native driver
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Patch Set 20:

(2 comments)

File src/soc/intel/common/block/notify/Kconfig:

https://review.coreboot.org/c/coreboot/+/60405/comment/5ec839a0_764f6da9 
PS20, Line 4: SOC_INTEL_COMMON_BLOCK_DSP
not required anymore?

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

https://review.coreboot.org/c/coreboot/+/60405/comment/50d9dd46_e72cceb1 
PS20, Line 8: user
nit:
`config`