forked from Mirrors/opensbi

A platform may use programmable counters for cycle/instret events. The priv spec allows that provided that cycle/instret also report those events in addition to the programmable counters. We should allow that functionality in OpenSBI. Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Atish Patra <atish.patra@wdc.com>