[test, aes] Remove the aes_lc_escalate from test plan
[test, aes] Remove the aes_lc_escalate from test plan

 The aes_lc_escalate chip level test neither make sense nor can be
 implemented by software, because the aes IP will only be  notified
 by the Alert Handler from the escalation phase 1, as the phase
 1 is drastic enough to block the IBEX to fetch instructions and
 the only way to recover from this state is a system reset.

Signed-off-by: Douglas Reis <df95399f7253aef5711aa5e1f53e8824981313ab@lowrisc.org>

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