forked from Mirrors/opensbi

Unify all the file and function names of 'sifive_test' device, to use the same prefix. This is also a preparatory patch for upcoming sifive reset device. Signed-off-by: Green Wan <green.wan@sifive.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>