include/hw/ppc: Supply a few missing includes

A few headers neglect to include headers they need.  They compile only
if something else includes the required header(s) first.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221222104628.659681-3-armbru@redhat.com>

include/hw/ppc/pnv_lpc.h

@@ -20,7 +20,8 @@
 #ifndef PPC_PNV_LPC_H
 #define PPC_PNV_LPC_H
 
-#include "qom/object.h"
+#include "exec/memory.h"
+#include "hw/qdev-core.h"
 
 #define TYPE_PNV_LPC "pnv-lpc"
 typedef struct PnvLpcClass PnvLpcClass;

include/hw/ppc/pnv_occ.h

@@ -20,7 +20,8 @@
 #ifndef PPC_PNV_OCC_H
 #define PPC_PNV_OCC_H
 
-#include "qom/object.h"
+#include "exec/memory.h"
+#include "hw/qdev-core.h"
 
 #define TYPE_PNV_OCC "pnv-occ"
 OBJECT_DECLARE_TYPE(PnvOCC, PnvOCCClass,

include/hw/ppc/pnv_pnor.h

@@ -10,7 +10,7 @@
 #ifndef PPC_PNV_PNOR_H
 #define PPC_PNV_PNOR_H
 
-#include "qom/object.h"
+#include "hw/sysbus.h"
 
 /*
  * PNOR offset on the LPC FW address space

include/hw/ppc/pnv_sbe.h

@@ -20,7 +20,8 @@
 #ifndef PPC_PNV_SBE_H
 #define PPC_PNV_SBE_H
 
-#include "qom/object.h"
+#include "exec/memory.h"
+#include "hw/qdev-core.h"
 
 #define TYPE_PNV_SBE "pnv-sbe"
 OBJECT_DECLARE_TYPE(PnvSBE, PnvSBEClass, PNV_SBE)

include/hw/ppc/pnv_xscom.h

@@ -20,7 +20,8 @@
 #ifndef PPC_PNV_XSCOM_H
 #define PPC_PNV_XSCOM_H
 
-#include "qom/object.h"
+#include "exec/memory.h"
+#include "hw/ppc/pnv.h"
 
 typedef struct PnvXScomInterface PnvXScomInterface;
 

include/hw/ppc/xive2.h

@@ -11,7 +11,9 @@
 #ifndef PPC_XIVE2_H
 #define PPC_XIVE2_H
 
+#include "hw/ppc/xive.h"
 #include "hw/ppc/xive2_regs.h"
+#include "hw/sysbus.h"
 
 /*
  * XIVE2 Router (POWER10)

include/hw/ppc/xive2_regs.h

@@ -10,6 +10,8 @@
 #ifndef PPC_XIVE2_REGS_H
 #define PPC_XIVE2_REGS_H
 
+#include "cpu.h"
+
 /*
  * Thread Interrupt Management Area (TIMA)
  *