Revision X is not mentioned in the latest RM0038 rev5, however it has been
confirmed correct by ST using ST-LINK Utilty.
Change-Id: I65210e512ea25818a1d0d3b223502ebd7535b29d
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/742
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
                                snprintf(buf, buf_size, "Y");
                                break;
 
+                       case 0x1018:
+                               snprintf(buf, buf_size, "X");
+                               break;
+
                        case 0x1038:
                                snprintf(buf, buf_size, "W");
                                break;