NaCl: Update revision in DEPS, b5365b4 -> 862ca26

This pulls in the following Native Client changes:

7aaf68d: (dschuff@chromium.org) Fix mode of run.py
a55fb84: (sbc@chromium.org) Update ARM sysroot in toolchain_revisions/arm_trusted.json
a0d24db: (bradnelson@chromium.org) Enabling asan pnacl toolchain builders.
9f62c3e: (sbc@chromium.org) Update QEMU version 1.0.1 -> 2.3.0
e04b61c: (kschimpf@google.com) Fix typo in iss https://codereview.chromium.org/1140793002
ce18634: (sbc@chromium.org) Roll ARM sysroot image to bring in new QEMU version
4e5d3d4: (mseaborn@chromium.org) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS
30d4b12: (mcgrathr@chromium.org) toolchain_build: Update glibc revision
0beb554: (jvoung@chromium.org) PNaCl: Update Subzero revision in pnacl/COMPONENT_REVISIONS
473ef0b: (jvoung@chromium.org) Update revision for PNaCl
2da5677: (sbc@chromium.org) Re-enable some ARM qemu tests now that we are using 2.3.0
862ca26: (dschuff@chromium.org) pnacl-ld: Don't run expand-varargs with relocatable output

BUG=none
TEST=browser_tests and nacl_integration
CQ_EXTRA_TRYBOTS=tryserver.chromium.linux:linux_chromium_dbg_32_ng,linux_arm_compile,linux_nacl_sdk_build

Review URL: https://codereview.chromium.org/1141073004

Cr-Commit-Position: refs/heads/master@{#330197}

DEPS

@@ -94,7 +94,7 @@ 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': 'b5365b48a73962904e04229ca3bf97948d03d034',
+  'nacl_revision': '862ca265aa1fdcabe8b3ab518251381bfbf48468',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.