src: Use ACPI macros

Change-Id: I2cf11b784299708f02fd749dcb887b6d25f86f5b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43552
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/intel/tigerlake/acpi.c b/src/soc/intel/tigerlake/acpi.c
index 4b31c6d..235b2b3 100644
--- a/src/soc/intel/tigerlake/acpi.c
+++ b/src/soc/intel/tigerlake/acpi.c
@@ -164,7 +164,7 @@
 
 	fadt->pm_tmr_blk = pmbase + PM1_TMR;
 	fadt->pm_tmr_len = 4;
-	fadt->x_pm_tmr_blk.space_id = 1;
+	fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 	fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
 	fadt->x_pm_tmr_blk.bit_offset = 0;
 	fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;