acpi/acpi.c: Split of ACPI table generation into separate files

acpi.c contains architectural specific things like IOAPIC, legacy IRQ,
DMAR, HPET, ... all which require the presence of architectural headers.

Instead of littering the code with #if ENV_X86 move the functions to
different compilation units.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I5083b26c0d4cc6764b4e3cb0ff586797cae7e3af
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76008
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 60efbdb..dc26b85 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -1468,10 +1468,13 @@
 int acpi_create_cedt_cfmws(acpi_cedt_cfmws_t *cfmws, u64 base_hpa, u64 window_size,
 	u8 eniw, u32 hbig, u16 restriction, u16 qtg_id, const u32 *interleave_target);
 
+
+unsigned long acpi_create_madt_ioapic_gsi0_default(unsigned long current);
 int acpi_create_madt_ioapic_from_hw(acpi_madt_ioapic_t *ioapic, u32 addr);
 
 unsigned long acpi_create_madt_one_lapic(unsigned long current, u32 cpu, u32 apic);
 
+unsigned long acpi_create_madt_lapics_with_nmis(unsigned long current);
 unsigned long acpi_create_madt_lapic_nmis(unsigned long current);
 
 int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic);