Change in coreboot[master]: soc/intel/alderlake: Switch to runtime generation of Intel Power Engine

[Cliff Huang (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Patrick Rudolph.
Cliff Huang has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56006 )

Change subject: soc/intel/alderlake: Switch to runtime generation of Intel Power Engine
......................................................................

Patch Set 1:

(1 comment)

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

https://review.coreboot.org/c/coreboot/+/56006/comment/b96f3de5_65138a23 
PS1, Line 126: 	/* Add Intel Power Engine device */
> `generate_acpi_power_engine` will not be compiled in unless `SOC_INTEL_COMMON_BLOCK_ACPI_PEP` is sel […]

If SOC_INTEL_COMMON_BLOCK_ACPI_PEP is unselected temporary for some test reason, this line also need to be commented out in order to build.