forked from Mirrors/opensbi

The same detection was done twice when setting mtvec and trap_exit. Merging can reduce code size. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>
The same detection was done twice when setting mtvec and trap_exit. Merging can reduce code size. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>