hw/misc/pvpanic: extract public API from i386/pc to "hw/misc/pvpanic.h"

and remove the old i386/pc dependency.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index 3a0e4ba..b26250d 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -17,7 +17,7 @@
 #include "qemu/log.h"
 
 #include "hw/nvram/fw_cfg.h"
-#include "hw/i386/pc.h"
+#include "hw/misc/pvpanic.h"
 
 /* The bit of supported pv event */
 #define PVPANIC_F_PANICKED      0
@@ -25,9 +25,8 @@
 /* The pv event value */
 #define PVPANIC_PANICKED        (1 << PVPANIC_F_PANICKED)
 
-#define TYPE_ISA_PVPANIC_DEVICE    "pvpanic"
 #define ISA_PVPANIC_DEVICE(obj)    \
-    OBJECT_CHECK(PVPanicState, (obj), TYPE_ISA_PVPANIC_DEVICE)
+    OBJECT_CHECK(PVPanicState, (obj), TYPE_PVPANIC)
 
 static void handle_event(int event)
 {
@@ -104,7 +103,7 @@
 
 uint16_t pvpanic_port(void)
 {
-    Object *o = object_resolve_path_type("", TYPE_ISA_PVPANIC_DEVICE, NULL);
+    Object *o = object_resolve_path_type("", TYPE_PVPANIC, NULL);
     if (!o) {
         return 0;
     }
@@ -126,7 +125,7 @@
 }
 
 static TypeInfo pvpanic_isa_info = {
-    .name          = TYPE_ISA_PVPANIC_DEVICE,
+    .name          = TYPE_PVPANIC,
     .parent        = TYPE_ISA_DEVICE,
     .instance_size = sizeof(PVPanicState),
     .instance_init = pvpanic_isa_initfn,