[dv/otp_ctrl] Update testplan for V2 review
[dv/otp_ctrl] Update testplan for V2 review

This PR updates the otp_ctrl's testplan for V2 review.

Signed-off-by: Cindy Chen <399ad771a111eac8923348b1e2af093034e5d4f1@opentitan.org>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan