[S] Change in coreboot[main]: acpi/acpi_gic: Add GIC ITS subtable

[Angel Pons (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Cliff Huang, Lance Zhao, Lean Sheng Tan, Maximilian Brune, Naresh Solanki, Nico Huber, Patrick Rudolph, Paul Menzel, Tim Wawrzynczak.

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78115?usp=email )

Change subject: acpi/acpi_gic: Add GIC ITS subtable
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Patch Set 7: Code-Review+1

(1 comment)

File src/acpi/acpi_gic.c:

https://review.coreboot.org/c/coreboot/+/78115/comment/6f388977_ee88be90 :
PS7, Line 100: sizeof(acpi_madt_gic_its_t)
Sorry, forgot to mark this one too. But I've just noticed that the rest of the file uses `sizeof(acpi_madt_gic_its_t)`, so maybe let's keep it as on patchset 6. Apologies for the noise.