[chromeperf] fix the path for taking production traffic in flask
[chromeperf] fix the path for taking production traffic in flask

Forgot to update the path for the add_histograms / add_point handlers in the previous CL: https://chromium-review.googlesource.com/c/catapult/+/4049068

Update them here.

Bug: chromium:1298177
Change-Id: Id8ec4a41e92fbf3af0975b74f622f3a0f318870e
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/4048982
Commit-Queue: Wenbin Zhang <45ad8a1ff616a38a2202fd35571df81897c5f14f@google.com>
Reviewed-by: John Chen <334fbfbb4df7c78f091ea1b77c69ca6ac731a3f3@chromium.org>
Auto-Submit: Wenbin Zhang <45ad8a1ff616a38a2202fd35571df81897c5f14f@google.com>
Commit-Queue: John Chen <334fbfbb4df7c78f091ea1b77c69ca6ac731a3f3@chromium.org>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult