powerpc/mpc85xx: check if core is disabled for showing status

"cpu <num> status" should check if core is disabled before printing
the spin table location.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

arch/powerpc/cpu/mpc85xx/mp.c

@@ -80,6 +80,8 @@ int cpu_status(int nr)
 	if (nr == id) {
 		table = (u32 *)&__spin_table;
 		printf("table base @ 0x%p\n", table);
+	} else if (is_core_disabled(nr)) {
+		puts("Disabled\n");
 	} else {
 		table = (u32 *)&__spin_table + nr * NUM_BOOT_ENTRY;
 		printf("Running on cpu %d\n", id);