[dv/otp] Add key output checking for sram
[dv/otp] Add key output checking for sram

This PR add a key output checking from OTP to SRAMs

Signed-off-by: Cindy Chen <399ad771a111eac8923348b1e2af093034e5d4f1@google.com>

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