toolchain_build: Update gcc revision
toolchain_build: Update gcc revision

This brings in:

d3c9354 Add SFI annotations to NEON load/store instructions

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3543
TEST= toolchain trybots
R=sehr@chromium.org

Review URL: https://codereview.chromium.org/18492007

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11700 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client