acpi/acpi.c: Change signature of write_acpi_tables

The argument is copied into current and is never modified.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I3084e43ccbe9749bc726af3120decfe8b52e1709
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75902
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 09e1211..d3f209a 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -1335,7 +1335,7 @@
 
 /* These are implemented by the target port or north/southbridge. */
 void preload_acpi_dsdt(void);
-unsigned long write_acpi_tables(unsigned long addr);
+unsigned long write_acpi_tables(const unsigned long addr);
 unsigned long acpi_fill_madt(unsigned long current);
 
 void acpi_fill_fadt(acpi_fadt_t *fadt);