Add debug_early_ll(), printf style debug_early function

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Use debug_early_ll instead of debug_ll when aborted

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
console: remove unused header

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>