MIPS: msp71xx: Convert to new irq_chip functions

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2197/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
Simple merge

diff --cc arch/mips/pmc-sierra/msp71xx/msp_irq_per.c
Simple merge

diff --cc arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
Simple merge