MIPS: MSP71xx: Resolve multiple definition of plat_timer_setup

There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository.  This patch
resolves the "multiple definition of plat_timer_setup" problem, and creates
the required get_c0_compare_int function.

This patch has been compile-tested against the current HEAD.
Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/pmc-sierra/msp71xx/msp_time.c

@@ -81,10 +81,7 @@ void __init plat_time_init(void)
 	mips_hpt_frequency = cpu_rate/2;
 }
 
-void __init plat_timer_setup(struct irqaction *irq)
+unsigned int __init get_c0_compare_int(void)
 {
-#ifdef CONFIG_IRQ_MSP_CIC
-	/* we are using the vpe0 counter for timer interrupts */
-	setup_irq(MSP_INT_VPE0_TIMER, irq);
-#endif
+	return MSP_INT_VPE0_TIMER;
 }