NaCl: Update revision in DEPS, r12208 -> r12227

This pulls in the following Native Client changes:

r12209: (mseaborn) PNaCl: Update LLVM revision in pnacl/DEPS: bitcode reader/writer cleanups
r12210: (mseaborn) PNaCl: Run the GCC torture tests on the PNaCl toolchain trybots
r12211: (jvoung) Remove workaround for le32 -> arm rewrite, now that rewrite isn't in reader.
r12213: (eliben) Tests that create temp files & dirs should use distinct prefixes passed to mkstemp/mkdtemp.
r12214: (phosek) Roll newlib version
r12215: (phosek) Replace C++ casts in IMC with their C counterparts
r12216: (mseaborn) Fix failure on PNaCl FYI bots introduced by r12210: run "SDK" install step
r12217: (eliben) Refactor and clean more tests that use tempfile...
r12218: (mseaborn) PNaCl: Allow translator to produce an unsandboxed, native executable
r12219: (binji) Revert "PNaCl: Allow translator to produce an unsandboxed, native executable"
r12220: (eliben) Move setlongjump test from tests/toolchain to tests/longjmp.
r12221: (mseaborn) PNaCl: Run checkdeps on the PNaCl toolchain trybots
r12222: (jfb) PNaCl LLVM test: support running llvm-regression on ninja builds.
r12223: (eliben) Create tests/libc and move relevant tests into it.
r12224: (mcgrathr) toolchain_build: Update gcc revision
r12225: (petarj) [MIPS] Clear FPU registers when entering untrusted code
r12226: (thakis) Remove references to sconsbuild.
r12227: (jfb) Update run.py.

BUG=none
TEST=browser_tests and nacl_integration

Review URL: https://codereview.chromium.org/26567011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227955 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227956 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227955
SVN changes up to revision 227956