sysbus: Convert to sysbus_realize() etc. with Coccinelle

Convert from qdev_realize(), qdev_realize_and_unref() with null @bus
argument to sysbus_realize(), sysbus_realize_and_unref().

Coccinelle script:

    @@
    expression dev, errp;
    @@
    -    qdev_realize(DEVICE(dev), NULL, errp);
    +    sysbus_realize(SYS_BUS_DEVICE(dev), errp);

    @@
    expression sysbus_dev, dev, errp;
    @@
    +    sysbus_dev = SYS_BUS_DEVICE(dev);
    -    qdev_realize_and_unref(dev, NULL, errp);
    +    sysbus_realize_and_unref(sysbus_dev, errp);
    -    sysbus_dev = SYS_BUS_DEVICE(dev);

    @@
    expression sysbus_dev, dev, errp;
    expression expr;
    @@
         sysbus_dev = SYS_BUS_DEVICE(dev);
         ... when != dev = expr;
    -    qdev_realize_and_unref(dev, NULL, errp);
    +    sysbus_realize_and_unref(sysbus_dev, errp);

    @@
    expression dev, errp;
    @@
    -    qdev_realize_and_unref(DEVICE(dev), NULL, errp);
    +    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), errp);

    @@
    expression dev, errp;
    @@
    -    qdev_realize_and_unref(dev, NULL, errp);
    +    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), errp);

Whitespace changes minimized manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-46-armbru@redhat.com>
[Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
diff --git a/hw/ppc/ppc440_uc.c b/hw/ppc/ppc440_uc.c
index c1cf8d0..38fc392 100644
--- a/hw/ppc/ppc440_uc.c
+++ b/hw/ppc/ppc440_uc.c
@@ -1369,11 +1369,11 @@
 
     dev = qdev_new(TYPE_PPC460EX_PCIE_HOST);
     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE);
-    qdev_realize_and_unref(dev, NULL, &error_fatal);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
 
     dev = qdev_new(TYPE_PPC460EX_PCIE_HOST);
     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE);
-    qdev_realize_and_unref(dev, NULL, &error_fatal);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
 }