mips/irq: prepare for drivers/irqchip/irqchip.h removal

The IRQCHIP_DECLARE macro migrated to 'include/linux/irqchip.h'.

See commit 91e20b50
("irqchip: Move IRQCHIP_DECLARE macro to include/linux/irqchip.h").

This patch removes inclusions of private header 'drivers/irqchip/irqchip.h'and
replaces them with the inclusion of 'include/linux/irqchip.h'.
Signed-off-by: Joel Porquet <joel@porquet.org>
Cc: vgupta@synopsys.com
Cc: monstr@monstr.eu
Cc: ralf@linux-mips.org
Cc: jason@lakedaemon.net
Link: http://lkml.kernel.org/r/3357968.0IznKtY3Q9@joel-zenbookSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/mips/ath79/irq.c

@@ -17,7 +17,6 @@
 #include <linux/interrupt.h>
 #include <linux/irqchip.h>
 #include <linux/of_irq.h>
-#include "../../../drivers/irqchip/irqchip.h"
 
 #include <asm/irq_cpu.h>
 #include <asm/mipsregs.h>

arch/mips/bmips/irq.c

@@ -34,5 +34,5 @@ void __init arch_init_irq(void)
 	irqchip_init();
 }
 
-OF_DECLARE_2(irqchip, mips_cpu_intc, "mti,cpu-interrupt-controller",
+IRQCHIP_DECLARE(mips_cpu_intc, "mti,cpu-interrupt-controller",
 	     mips_cpu_irq_of_init);

arch/mips/kernel/i8259.c

@@ -18,12 +18,11 @@
 #include <linux/spinlock.h>
 #include <linux/syscore_ops.h>
 #include <linux/irq.h>
+#include <linux/irqchip.h>
 
 #include <asm/i8259.h>
 #include <asm/io.h>
 
-#include "../../drivers/irqchip/irqchip.h"
-
 /*
  * This is the 'legacy' 8259A Programmable Interrupt Controller,
  * present in the majority of PC/AT boxes.