[MIPS] Fix do_default_vi to use get_irq_regs to get the irq register …

…ptr.

Harmless bug because this function is only called in case of another
kernel bug anyway which is also why this was missed for so long.

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

arch/mips/kernel/traps.c

@@ -927,9 +927,9 @@ asmlinkage void do_reserved(struct pt_regs *regs)
 	      (regs->cp0_cause & 0x7f) >> 2);
 }
 
-static asmlinkage void do_default_vi(struct pt_regs *regs)
+static asmlinkage void do_default_vi(void)
 {
-	show_regs(regs);
+	show_regs(get_irq_regs());
 	panic("Caught unexpected vectored interrupt.");
 }