Change in coreboot[master]: cpu/haswell/*.c: Use static.c exposed lapic 0

[Angel Pons (Code Review)]

Attention is currently required from: Arthur Heymans, Raul Rangel, Tristan Corrick, Tim Wawrzynczak, Alexander Couzens, Patrick Rudolph.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59314 )

Change subject: cpu/haswell/*.c: Use static.c exposed lapic 0
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Patch Set 2: Code-Review+1

(1 comment)

File src/cpu/intel/haswell/haswell_init.c:

https://review.coreboot.org/c/coreboot/+/59314/comment/55c415d4_c9231895 
PS2, Line 178: 
             : 	struct cpu_vr_config vr_config = { 0 };
             : 	msr_t msr;
             : 
             : 	const struct cpu_intel_haswell_config *conf = config_of_lapic();
             : 	vr_config = conf->vr_config;
Now that we always get the devicetree settings, this can be simplified:

const struct cpu_intel_haswell_config *conf = config_of_lapic();
    const struct cpu_vr_config vr_config = conf->vr_config;
    msr_t msr;

Or simply get rid of the `vr_config` local variable.