Roll src/native_client/ fc8541e88..4bac1a1e2 (1 commit).

https://chromium.googlesource.com/native_client/src/native_client.git/+log/fc8541e88a9b..4bac1a1e26d2

$ git log fc8541e88..4bac1a1e2 --date=short --no-merges --format='%ad %ae %s'
2016-03-17 petarj [MIPS] Add missing -L flag to mips newlib nexe action

CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_dbg_32_ng,linux_nacl_sdk_build
TBR=mseaborn@chromium.org

Review URL: https://codereview.chromium.org/1815483002

Cr-Commit-Position: refs/heads/master@{#381816}

DEPS

@@ -87,7 +87,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling NaCl
   # and whatever else without interference from each other.
-  'nacl_revision': 'fc8541e88a9b0b4f3a148d8ba70ff365f5fcead9',
+  'nacl_revision': '4bac1a1e26d22d2074d271581ae86425a4e8296f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling dEQP
   # and whatever else without interference from each other.