MIPS: Loongson2ef: Convert to early_printk_8250

early_printk.c is doing the same with early_printk_8250.
Remove duplicated code.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: chenhe@lemote.com
6 files changed