hw/timer/hpet.c calls address_space_stl_le() declared in
"exec/address-spaces.h". Include it.

This fixes (when modifying unrelated headers):

  hw/timer/hpet.c:210:31: error: use of undeclared identifier 'address_space_memory'
          address_space_stl_le(&address_space_memory, timer->fsb >> 32,
                               ^~~~~~~~~~~~~~~~~~~~

Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/timer/hpet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 4f30dd50a4..380acfa7c8 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -36,6 +36,7 @@
 #include "hw/rtc/mc146818rtc_regs.h"
 #include "migration/vmstate.h"
 #include "hw/timer/i8254.h"
+#include "exec/address-spaces.h"
 
 //#define HPET_DEBUG
 #ifdef HPET_DEBUG
-- 
2.21.1