libsm: upgrade to 1.2.1

The license change is because:

--- libsm-1_1.2.0-r1/libSM-1.2.0/COPYING        2010-01-15 12:59:55.000000000 +0800
+++ libsm-1_1.2.1-r0/libSM-1.2.1/COPYING        2012-03-03 12:53:55.000000000 +0800
@@ -1,4 +1,4 @@
-Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
+Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.

 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),
@@ -19,6 +19,7 @@
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.

+
 Copyright 1993, 1998  The Open Group

 Permission to use, copy, modify, distribute, and sell this software and its

(From OE-Core rev: 27fbb481e1b39ce5cfdecf19bb434be096392e72)

Signed-off-by: Shane Wang <shane.wang@intel.com>

meta/recipes-graphics/xorg-lib/libsm_1.2.1.bb

@@ -9,16 +9,16 @@ has a particular state."
 require xorg-lib-common.inc
 
 LICENSE = "MIT-style"
-LIC_FILES_CHKSUM = "file://COPYING;md5=d98446615b962372d6a46057170043fa"
+LIC_FILES_CHKSUM = "file://COPYING;md5=c0fb37f44e02bdbde80546024400728d"
 
 DEPENDS += "libice xproto xtrans e2fsprogs"
 
-PR = "r1"
+PR = "r0"
 PE = "1"
 
 XORG_PN = "libSM"
 
 BBCLASSEXTEND = "native"
 
-SRC_URI[md5sum] = "e78c447bf1790552b644eca81b542742"
-SRC_URI[sha256sum] = "0cd8df1b7067bfda10b05d38279777770677c6fecb5a14e804a28597da7a57cb"
+SRC_URI[md5sum] = "766de9d1e1ecf8bf74cebe2111d8e2bd"
+SRC_URI[sha256sum] = "93c11d569c64f40723b93b44af1efb474a0cfe92573b0c8c330343cabb897f1d"