Re-enable push image and debug symbols for release builds.
Re-enable push image and debug symbols for release builds.

BUG=chromium-os:15335
TEST=unittests

Change-Id: I8217d4db1a15ed71c409dd6a4fbcd13e821286bc
Reviewed-on: http://gerrit.chromium.org/gerrit/1254
Reviewed-by: Chris Sosa <959d3d631fb6f17f1b07f751372041a1edb210d1@chromium.org>
Tested-by: Chris Sosa <959d3d631fb6f17f1b07f751372041a1edb210d1@chromium.org>

chadversary/chromiumos.chromite,chadversary/chromiumos.chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,zhang0137/chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,zhang0137/chromite,zhang0137/chromite