forked from Mirrors/opensbi

To support RISC-V hypervisor v0.6.1, we: 1. Don't need to explicitly forward WFI traps from VS/VU-mode 2. Have to delegate virtual instruction trap to HS-mode 3. Have to update trap redirection for changes in HSTATUS CSR Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>