memory: rename MemoryRegion::has_ram_addr to ::terminates

I/O regions will not have ram_addrs, so this is a better name.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/memory.h b/memory.h
index d441bd8..47d6b9d 100644
--- a/memory.h
+++ b/memory.h
@@ -90,7 +90,7 @@
     target_phys_addr_t addr;
     target_phys_addr_t offset;
     ram_addr_t ram_addr;
-    bool has_ram_addr;
+    bool terminates;
     MemoryRegion *alias;
     target_phys_addr_t alias_offset;
     unsigned priority;