PNaCl: Update Subzero revision in pnacl/COMPONENT_REVISIONS
PNaCl: Update Subzero revision in pnacl/COMPONENT_REVISIONS

This pulls in the following Subzero changes:

2f67b92: (kschimpf@google.com) First attempt to capture parser/translation errors in browser.
620ad73: (stichnot@chromium.org) Subzero: Fix asm (non-ELF) output files.
76dcf1a: (stichnot@chromium.org) Subzero: Produce actually correct code in --asm-verbose mode.
4175b2a: (stichnot@chromium.org) Subzero: Also dump live-end info for stack vars under -asm-verbose.
90ccc3f: (jvoung@chromium.org) Rename AssemblerX86 to AssemblerX8632 so it works with SZTargets.def.
0e7e412: (kschimpf@google.com) Fix instruction unit tests to use new editing constants.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4138
BUG= https://code.google.com/p/nativeclient/issues/detail?id=4135
TEST= PNaCl toolchain trybots
NOTRY=true

Review URL: https://codereview.chromium.org/1121773002

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