MIPS: Move gic.h to include/linux/irqchip/mips-gic.h

Now that the MIPS GIC irqchip lives in drivers/irqchip/, move
its header over to include/linux/irqchip/.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8129/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/csrc-gic.c b/arch/mips/kernel/csrc-gic.c
index ab615c6..0bf28e6 100644
--- a/arch/mips/kernel/csrc-gic.c
+++ b/arch/mips/kernel/csrc-gic.c
@@ -6,10 +6,9 @@
  * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
  */
 #include <linux/init.h>
+#include <linux/irqchip/mips-gic.h>
 #include <linux/time.h>
 
-#include <asm/gic.h>
-
 static cycle_t gic_hpt_read(struct clocksource *cs)
 {
 	return gic_read_count();