powerpc/85xx: fix a bug with the parameter of mpic_reset_core()

mpic_reset_core() need a logical cpu number instead of physical.
Signed-off-by: NZhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: NLi Yang <leoli@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/smp.c

@@ -201,7 +201,7 @@ static int __cpuinit smp_85xx_kick_cpu(int nr)
 		 * We don't set the BPTR register here since it already points
 		 * to the boot page properly.
 		 */
-		mpic_reset_core(hw_cpu);
+		mpic_reset_core(nr);
 
 		/*
 		 * wait until core is ready...