forked from Mirrors/opensbi

In case the double trap handler is called and the double trap happened in supervisor mode, send a double trap SSE event. NOTE: this commit depends on the ratification of the new SSE event id for double trap [1]. Link: https://lists.riscv.org/g/tech-prs/message/985 [1] Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com>