ppc: do not use ../ in include files

This simplifies the scripted execution of the next patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/ppc/e500-ccsr.h

@@ -1,7 +1,7 @@
 #ifndef E500_CCSR_H
 #define E500_CCSR_H
 
-#include "../sysbus.h"
+#include "hw/sysbus.h"
 
 typedef struct PPCE500CCSRState {
     /*< private >*/

hw/ppc/e500plat.c

@@ -12,7 +12,7 @@
 #include "config.h"
 #include "qemu-common.h"
 #include "e500.h"
-#include "../boards.h"
+#include "hw/boards.h"
 #include "sysemu/device_tree.h"
 #include "hw/pci/pci.h"
 #include "hw/openpic.h"

hw/ppc/mpc8544ds.c

@@ -12,7 +12,7 @@
 #include "config.h"
 #include "qemu-common.h"
 #include "e500.h"
-#include "../boards.h"
+#include "hw/boards.h"
 #include "sysemu/device_tree.h"
 #include "hw/openpic.h"