[dv] Remove toggle coverage excl for a_user/d_user
[dv] Remove toggle coverage excl for a_user/d_user

these 2 fields should be fully verified

Signed-off-by: Weicai Yang <4fa8c7762ee4da95e3dee7dae2c3263ea16637f9@google.com>

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