[MIPS] MV64340: Add missing prototype for mv64340_irq_init().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/marvell.h b/include/asm-mips/marvell.h
index df94955..b6144ba 100644
--- a/include/asm-mips/marvell.h
+++ b/include/asm-mips/marvell.h
@@ -54,5 +54,6 @@
 };
 
 extern void ll_mv64340_irq(void);
+extern void mv64340_irq_init(unsigned int base);
 
 #endif	/* __ASM_MIPS_MARVELL_H */