nvdimm: fix typo in nvdimm_build_nvdimm_devices argument

>From dsm_dma_arrea to dsm_dma_area.
Signed-off-by: NWei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190227075101.6263-2-richardw.yang@linux.intel.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>

hw/acpi/nvdimm.c

@@ -1260,7 +1260,7 @@ static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots)
 }
 
 static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
-                              BIOSLinker *linker, GArray *dsm_dma_arrea,
+                              BIOSLinker *linker, GArray *dsm_dma_area,
                               uint32_t ram_slots)
 {
     Aml *ssdt, *sb_scope, *dev;
@@ -1307,7 +1307,7 @@ static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
                                                NVDIMM_ACPI_MEM_ADDR);
 
     bios_linker_loader_alloc(linker,
-                             NVDIMM_DSM_MEM_FILE, dsm_dma_arrea,
+                             NVDIMM_DSM_MEM_FILE, dsm_dma_area,
                              sizeof(NvdimmDsmIn), false /* high memory */);
     bios_linker_loader_add_pointer(linker,
         ACPI_BUILD_TABLE_FILE, mem_addr_offset, sizeof(uint32_t),