Changes v1.1 to v2 for Compute endpoint in sample_data.sh

Pointed out in a comment in the docs.

Change-Id: Iceaf9d5a8098e6be8768e2bdb9bf6198ee7082f3
Closes-bug: 1230270
Merge "Changes v1.1 to v2 for Compute endpoint in sample_data.sh"