hw: Use new memory_region_init_{ram, rom, rom_device}() functions

Use the new functions memory_region_init_{ram,rom,rom_device}()
instead of manually calling the _nomigrate() version and then
vmstate_register_ram_global().

Patch automatically created using coccinelle script:
 spatch --in-place -sp_file scripts/coccinelle/memory-region-init-ram.cocci -dir hw

(As it turns out, there are no instances of the rom and
rom_device functions that are caught by this script.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-8-git-send-email-peter.maydell@linaro.org
diff --git a/hw/arm/realview.c b/hw/arm/realview.c
index a5e8f86..76ff557 100644
--- a/hw/arm/realview.c
+++ b/hw/arm/realview.c
@@ -143,15 +143,13 @@
         ram_lo = g_new(MemoryRegion, 1);
         low_ram_size = ram_size - 0x20000000;
         ram_size = 0x20000000;
-        memory_region_init_ram_nomigrate(ram_lo, NULL, "realview.lowmem", low_ram_size,
+        memory_region_init_ram(ram_lo, NULL, "realview.lowmem", low_ram_size,
                                &error_fatal);
-        vmstate_register_ram_global(ram_lo);
         memory_region_add_subregion(sysmem, 0x20000000, ram_lo);
     }
 
-    memory_region_init_ram_nomigrate(ram_hi, NULL, "realview.highmem", ram_size,
+    memory_region_init_ram(ram_hi, NULL, "realview.highmem", ram_size,
                            &error_fatal);
-    vmstate_register_ram_global(ram_hi);
     low_ram_size = ram_size;
     if (low_ram_size > 0x10000000)
       low_ram_size = 0x10000000;
@@ -345,9 +343,8 @@
        startup code.  I guess this works on real hardware because the
        BootROM happens to be in ROM/flash or in memory that isn't clobbered
        until after Linux boots the secondary CPUs.  */
-    memory_region_init_ram_nomigrate(ram_hack, NULL, "realview.hack", 0x1000,
+    memory_region_init_ram(ram_hack, NULL, "realview.hack", 0x1000,
                            &error_fatal);
-    vmstate_register_ram_global(ram_hack);
     memory_region_add_subregion(sysmem, SMP_BOOT_ADDR, ram_hack);
 
     realview_binfo.ram_size = ram_size;