memory-device: use memory device terminology in error messages

While we rephrased most error messages, we missed these.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181005092024.14344-6-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 0624184..87369ef 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -87,7 +87,7 @@
     memory_device_used_region_size(OBJECT(ms), &used_region_size);
     if (used_region_size + size > ms->maxram_size - ms->ram_size) {
         error_setg(errp, "not enough space, currently 0x%" PRIx64
-                   " in use of total hot pluggable 0x" RAM_ADDR_FMT,
+                   " in use of total space for memory devices 0x" RAM_ADDR_FMT,
                    used_region_size, ms->maxram_size - ms->ram_size);
         return;
     }
@@ -145,12 +145,12 @@
     if (hint) {
         new_addr = *hint;
         if (new_addr < address_space_start) {
-            error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64
+            error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64
                        "] before 0x%" PRIx64, new_addr, size,
                        address_space_start);
             return 0;
         } else if ((new_addr + size) > address_space_end) {
-            error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64
+            error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64
                        "] beyond 0x%" PRIx64, new_addr, size,
                        address_space_end);
             return 0;