Update TOOL_REVISIONS for PNaCl r12944->r12981
Update TOOL_REVISIONS for PNaCl r12944->r12981

Pull the following PNaCl changes into NaCl:
  r12945: (noelallen@google.com) Roll bionic
  r12950: (noelallen@google.com) Fix DEPs and cleanup libc warnings
  r12951: (dyen@chromium.org) PNaCl toolchain and driver now uses the new toolchain location
  r12953: (mseaborn@chromium.org) Unsandboxed IRT: Implement getpid()
  r12954: (noelallen@google.com) Fix irt_syscalls.h dependency Roll bionic to get warning fixes.
  r12956: (mseaborn@chromium.org) PNaCl driver scripts: Remove unused USE_BOOTSTRAP field
  r12957: (mseaborn@chromium.org) IRT interfaces: Clean up use of off_t by defining a nacl_irt_off_t type
  r12958: (noelallen@google.com) Fix roll
  r12961: (mseaborn@chromium.org) PNaCl driver scripts: Fix various pyflakes warnings
  r12965: (mseaborn@chromium.org) PNaCl driver scripts: Remove use of "import *"
  r12966: (mseaborn@chromium.org) Unsandboxed IRT: Whitelist and convert mmap() flag values
  r12968: (dyen@chromium.org) Toolchain Build now stores package description files for final packages.
  r12969: (jvoung@google.com) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS
    | a75986e: (mseaborn@chromium.org) PNaCl: Remove all whitespace-only localmods
    | f0bd55f: (jvoung@chromium.org) FlattenGlobals: Only check size and alignment for non-opaque variables.
  r12971: (mseaborn@chromium.org) pnacl-translate: Refactor selection of arch-specific flags
  r12979: (jvoung@google.com) Remove match awk.pass.cpp from known fails. Test got commented out.
  r12980: (jvoung@google.com) Add single-threaded translation variants to PNaCl spec2k bots.
  r12981: (jfb@chromium.org) PNaCl: Update LLVM revision in pnacl/COMPONENT_REVISIONS
    | 6110bae: (jfb@chromium.org) PNaCl bitcode reader: restrict some record sizes

BUG= none
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3699
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3804
BUG= <none>
BUG= http://code.google.com/p/nativeclient/issues/detail?id=3804
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3816
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3817
R= noelallen@google.com, jvoung@google.com, bradnelson@google.com, jvoung@chromium.org, mseaborn@chromium.org, petarj@mips.com, jfb@chromium.org, mcgrathr@chromium.org, kschimpf@chromium.org, stichnot@chromium.org, noelallen@chromium.org, dyen@chromium.org
TEST=git try
NOTRY=true
(Please LGTM this change and tick the "commit" box)

Review URL: https://codereview.chromium.org/216593003

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12986 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client