Nothing in "tpm_ppi.h" require declarations from "hw/acpi/tpm.h".
Reduce dependencies and include it only in the files requiring it.

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/tpm/tpm_ppi.h        | 1 -
 hw/tpm/tpm_ppi.c        | 1 +
 hw/tpm/tpm_tis_isa.c    | 1 +
 hw/tpm/tpm_tis_sysbus.c | 1 +
 4 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/tpm/tpm_ppi.h b/hw/tpm/tpm_ppi.h
index d33ef27de6..6f773c25a0 100644
--- a/hw/tpm/tpm_ppi.h
+++ b/hw/tpm/tpm_ppi.h
@@ -12,7 +12,6 @@
 #ifndef TPM_TPM_PPI_H
 #define TPM_TPM_PPI_H
 
-#include "hw/acpi/tpm.h"
 #include "exec/address-spaces.h"
 
 typedef struct TPMPPI {
diff --git a/hw/tpm/tpm_ppi.c b/hw/tpm/tpm_ppi.c
index 6d9c1a3e40..72d7a3d926 100644
--- a/hw/tpm/tpm_ppi.c
+++ b/hw/tpm/tpm_ppi.c
@@ -17,6 +17,7 @@
 #include "cpu.h"
 #include "sysemu/memory_mapping.h"
 #include "migration/vmstate.h"
+#include "hw/acpi/tpm.h"
 #include "tpm_ppi.h"
 #include "trace.h"
 
diff --git a/hw/tpm/tpm_tis_isa.c b/hw/tpm/tpm_tis_isa.c
index 30ba37079d..42f909ff1e 100644
--- a/hw/tpm/tpm_tis_isa.c
+++ b/hw/tpm/tpm_tis_isa.c
@@ -26,6 +26,7 @@
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "hw/acpi/tpm.h"
 #include "tpm_util.h"
 #include "tpm_tis.h"
 
diff --git a/hw/tpm/tpm_tis_sysbus.c b/hw/tpm/tpm_tis_sysbus.c
index eced1fc843..edca1dae0d 100644
--- a/hw/tpm/tpm_tis_sysbus.c
+++ b/hw/tpm/tpm_tis_sysbus.c
@@ -25,6 +25,7 @@
 #include "qemu/osdep.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "hw/acpi/tpm.h"
 #include "tpm_util.h"
 #include "hw/sysbus.h"
 #include "tpm_tis.h"
-- 
2.21.3