MIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.c

Current EMMA2RH irq code is mess.  Before cleaning it up, gather them
in one place as a first step.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
6 files changed