fix a typo in the previous commit

SVN-Revision: 10958

target/linux/atheros/patches-2.6.24/901-get_c0_compare_irq_function.patch

@@ -40,7 +40,7 @@ Index: linux-2.6.24.2/arch/mips/atheros/board.c
      board_time_init();
  }
 +
-+unsigned int __init get_c0_counter_irq(void)
++unsigned int __init get_c0_compare_irq(void)
 +{
 +	return CP0_LEGACY_COMPARE_IRQ;
 +}