Increase image upload timeout from 30min to 60min
Increase image upload timeout from 30min to 60min

Current setting of 30 minutes to finish uploading release images
that are close to 5GB may not be enough and see some builders
are failing due to timeout.  Double the timeout to 60 minutes.

BUG=chromium:291266
TEST=None

Change-Id: Ieaec87696f6819681ac5dc7edabe2d021d4f727a
Reviewed-on: https://chromium-review.googlesource.com/169388
Reviewed-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Reviewed-by: Bernie Thompson <88a16a105b67ec86732da208bff06a7d4d211801@chromium.org>
Commit-Queue: Peter Mayo <3d31fdaf44dc55bb1b4f50b19df9bc879177d37a@chromium.org>
Tested-by: Peter Mayo <3d31fdaf44dc55bb1b4f50b19df9bc879177d37a@chromium.org>

bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite