acpi: Rename acpi_create_dmar_drhd

For most of SoCs, DRHD is by default with the size of 4KB. However,
larger sizes are allowed as well. Rename acpi_create_dmar_drhd to
acpi_create_dmar_drhd_4k to support the default case while a later
patch will re-add acpi_create_dmar_drhd with a size parameter.

TEST=intel/archercity CRB

Change-Id: Ic0a0618aa8e46d3fec2ceac7a91742122993df91
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83202
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/acpi/acpi_dmar.c b/src/acpi/acpi_dmar.c
index 3853142..20a100d 100644
--- a/src/acpi/acpi_dmar.c
+++ b/src/acpi/acpi_dmar.c
@@ -36,7 +36,7 @@
 	header->checksum = acpi_checksum((void *)dmar, header->length);
 }
 
-unsigned long acpi_create_dmar_drhd(unsigned long current, u8 flags,
+unsigned long acpi_create_dmar_drhd_4k(unsigned long current, u8 flags,
 	u16 segment, u64 bar)
 {
 	dmar_entry_t *drhd = (dmar_entry_t *)current;