forked from Mirrors/opensbi

The specification states that a6 contains the current hart id and a7 contains the entry argument. This was inverted in the current implementation. Reported-by: Andrew Jones <andrew.jones@linux.dev> Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org>