Update toolchain DEPS.
Update toolchain DEPS.

Bad news:

Updating arm_toolchain_version from 5262 to 5330 reveals trybot failure on nacl-lucid64-pnacl2:
http://chromegw.corp.google.com/i/tryserver.nacl/builders/nacl-lucid64-pnacl2/builds/1311

stage: spec2k build [SetupPnaclArmOpt] [train-some] [spec2k build [SetupPnaclArmOpt] [train-some]]
stderr        : gcc.opt.bc: error: undefined reference to 'signal'
gcc.opt.bc: error: undefined reference to 'system'

this passed before the roll.
*Not* rolling the ARM toolchain revision now.
Review URL: http://codereview.chromium.org/7017009

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@5333 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client