Change in coreboot[master]: *x86: Support x2apic mode

[Paul Menzel (Code Review)]

Attention is currently required from: Furquan Shaikh, Jamie Ryu, Wonkyu Kim, Subrata Banik, Raj Astekar, Patrick Rudolph.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51723 )

Change subject: *x86: Support x2apic mode
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Patch Set 6: Code-Review+1

(4 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/51723/comment/7f15ac20_45c77529 
PS6, Line 10: LAPIC_BASE_MSR(LAPIC_BASE_MSR_X2APIC_MODE)
Please add a space before the (.

https://review.coreboot.org/c/coreboot/+/51723/comment/6f994713_5f9b9a65 
PS6, Line 11: implment
implement

https://review.coreboot.org/c/coreboot/+/51723/comment/2d7bb4c3_ec2a6638 
PS6, Line 21: cat /proc/cpuinfo | grep "apicid"
No need to use cat. ;-)

grep apicid /proc/cpuinfo

Patchset:

PS5:
> Why are there three +2, if a 500 line change does not have a commit message consisting of one line?

*does only have a commit message body consisting of one line.