[M] Change in coreboot[main]: soc/intel/xeon_sp: Improve IRQ routing for Gen6

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Attention is currently required from: Angel Pons, Christian Walter, Johnny Lin, Jonathan Zhang, Patrick Rudolph, Shuo Liu, Tim Chu.

[e-mail] has posted comments on this change by Shuo Liu. ( https://review.coreboot.org/c/coreboot/+/85153?usp=email )

Change subject: soc/intel/xeon_sp: Improve IRQ routing for Gen6
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Patch Set 10:

(1 comment)

File src/soc/intel/xeon_sp/lpc_gen6.c:

https://review.coreboot.org/c/coreboot/+/85153/comment/d90d2692_eebd5928?usp... :
PS10, Line 50: 	uint8_t int_line = (pirq_rout & 0x80) ? pirq - PIRQ_A + PCH_IRQ16 : pirq_rout & 0xf;
You can use `pirq_idx()` here.