Change in coreboot[master]: soc/intel/alderlake: Create separate Kconfig for CLKSRC and CLKREQ

[Furquan Shaikh (Code Review)]

Attention is currently required from: Subrata Banik.
Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50130 )

Change subject: soc/intel/alderlake: Create separate Kconfig for CLKSRC and CLKREQ
......................................................................

Patch Set 4:

(1 comment)

File src/soc/intel/alderlake/chip.h:

https://review.coreboot.org/c/coreboot/+/50130/comment/8b286601_a2d427a0 
PS4, Line 137: CONFIG_MAX_PCIE_CLOCK_REQ
This is not correct. The index for PcieClkSrcClkReq is clock source and the value is clock req. Thus, the array still needs to be of size `CONFIG_MAX_PCIE_CLOCK_SRC`.