[MIPS] Make do_default_vi static

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/traps.c

@@ -927,7 +927,7 @@ asmlinkage void do_reserved(struct pt_regs *regs)
 	      (regs->cp0_cause & 0x7f) >> 2);
 }
 
-asmlinkage void do_default_vi(struct pt_regs *regs)
+static asmlinkage void do_default_vi(struct pt_regs *regs)
 {
 	show_regs(regs);
 	panic("Caught unexpected vectored interrupt.");