Update gcc revision in pnacl/DEPS. Pulls in a change in libstdc++:
Update gcc revision in pnacl/DEPS. Pulls in a change in libstdc++:

98250ea Change pow(T, int) to invoke pow(T, T). [eliben@chromium.org]

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3524
R=dschuff@google.com

Review URL: https://codereview.chromium.org/18661006

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11725 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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