NaCl: Update revision in DEPS, r13710 -> r13724

This pulls in the following Native Client changes:

r13711: (mseaborn) Move syscall definitions to pure C code, replacing nacl_syscall_handlers_gen.py
r13712: (dbrazdil) Fixed signatures of _Unwind_* stubs in PNaCl support library
r13713: (uekawa) Minor consistency style fixes.
r13714: (dschuff) Move REV file to metadata package and include all repos
r13715: (mseaborn) Remove the old "SecureRandom" service, formerly used by get_random_bytes()
r13716: (dyen) Unify the way irt_ext libc how tests are declared and defined.
r13717: (dyen) Asserts used by irt_ext are now done through error_report.c.
r13718: (dschuff) Update revision for PNaCl r13696->r13714
r13719: (dschuff) Build host libc++ and host tools with clang on Linux and Mac
r13720: (bradnelson) Switching pnacl download script to use gsutil for download too.
r13721: (dyen) In IRT Extension API, added file stat support and tests.
r13722: (dbrazdil) Add MinSFI loader
r13723: (bradnelson) Vary build settings on fastbuild + configuration + buildtype (reland).
r13724: (dbrazdil) Update signature of MinSFI's entry point

BUG=none
TEST=browser_tests and nacl_integration
CQ_EXTRA_TRYBOTS=tryserver.chromium.linux:linux_rel_precise32,linux_arm_cross_compile,linux_nacl_sdk,linux_chromium_dbg

Review URL: https://codereview.chromium.org/553323002

Cr-Commit-Position: refs/heads/master@{#294264}

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': '280ff82b92d6382596194c445ffaac6c720ecf40', # from svn revision r13710
+  'nacl_revision': '040ce5b24430e8f114d50a359517e6f82aa43ecf', # from svn revision r13724
 }
 
 deps = {