[test] Implement rom_e2e_shutdown_exception_asm
[test] Implement rom_e2e_shutdown_exception_asm

Fixes #14273

Signed-off-by: Dan McArdle <8fb240f11ec935676fcfd8aed04f42f9ee63efa8@google.com>

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