[MIPS] Update UPSTREAM_REV to pull in MIPS LLVM change
[MIPS] Update UPSTREAM_REV to pull in MIPS LLVM change

R=robertm@chromium.org,jvoung@chromium.org,sehr@chromium.org
BUG= http://code.google.com/p/nativeclient/issues/detail?id=2275
TEST= it compiles

Review URL: https://chromiumcodereview.appspot.com/10583023

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@8987 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client