char: rename qemu_chr_read() -> qemu_chr_be_write()

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/gdbstub.c b/gdbstub.c
index b0f57c1..35bf009 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -2194,7 +2194,7 @@
             hextomem(mem_buf, p + 5, len);
             len = len / 2;
             mem_buf[len++] = 0;
-            qemu_chr_read(s->mon_chr, mem_buf, len);
+            qemu_chr_be_write(s->mon_chr, mem_buf, len);
             put_packet(s, "OK");
             break;
         }