Update PNaCl TOOL_REVISION 12184 -> 12187
Update PNaCl TOOL_REVISION 12184 -> 12187

Revert r12140: PNaCl: Put newlib before libnacl on the link line.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3687
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/24295004

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12192 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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