[sca] Add support for AES TVLA fixed-vs-random key captures in batch mode.
[sca] Add support for AES TVLA fixed-vs-random key captures in batch mode.

In order to simplify the analysis, the first encryption has to use
fixed key. In addition a PRNG is used for random key and plaintext
generation instead of AES algorithm as specified in the TVLA DTR.

Signed-off-by: Abdullah Varici <6039105c2af672eb81c31c2920848ea73480a112@lowrisc.org>

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