[dv/otp] Add more token checkings for `otp_lc_data_o` signal
[dv/otp] Add more token checkings for `otp_lc_data_o` signal

This PR is an enhancement to current design change that adds three valid
signals in `otp_lc_data_o` output.
This PR adds the corresponding checkings for these valid signals and
tokens.

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

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