hw/isa/piix4: Rename reset control operations to match PIIX3

Both implementations are the same and will be shared upon merging.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20231007123843.127151-18-shentey@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/isa/piix4.c

@@ -148,8 +148,8 @@ static void piix4_request_i8259_irq(void *opaque, int irq, int level)
     qemu_set_irq(s->cpu_intr, level);
 }
 
-static void piix4_rcr_write(void *opaque, hwaddr addr, uint64_t val,
-                            unsigned int len)
+static void rcr_write(void *opaque, hwaddr addr, uint64_t val,
+                      unsigned int len)
 {
     PIIX4State *s = opaque;
 
@@ -161,16 +161,16 @@ static void piix4_rcr_write(void *opaque, hwaddr addr, uint64_t val,
     s->rcr = val & 2; /* keep System Reset type only */
 }
 
-static uint64_t piix4_rcr_read(void *opaque, hwaddr addr, unsigned int len)
+static uint64_t rcr_read(void *opaque, hwaddr addr, unsigned int len)
 {
     PIIX4State *s = opaque;
 
     return s->rcr;
 }
 
-static const MemoryRegionOps piix4_rcr_ops = {
-    .read = piix4_rcr_read,
-    .write = piix4_rcr_write,
+static const MemoryRegionOps rcr_ops = {
+    .read = rcr_read,
+    .write = rcr_write,
     .endianness = DEVICE_LITTLE_ENDIAN,
     .impl = {
         .min_access_size = 1,
@@ -194,7 +194,7 @@ static void piix4_realize(PCIDevice *dev, Error **errp)
     qdev_init_gpio_out_named(DEVICE(dev), &s->cpu_intr,
                              "intr", 1);
 
-    memory_region_init_io(&s->rcr_mem, OBJECT(dev), &piix4_rcr_ops, s,
+    memory_region_init_io(&s->rcr_mem, OBJECT(dev), &rcr_ops, s,
                           "reset-control", 1);
     memory_region_add_subregion_overlap(pci_address_space_io(dev),
                                         PIIX_RCR_IOPORT, &s->rcr_mem, 1);