ppc: mpc85xx: Wrap LAW related codes with CONFIG_FSL_LAW

LAW related codes should be wrapped with CONFIG_FSL_LAW.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
index 4195ecc..5a0d33b 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
@@ -123,7 +123,9 @@
 	setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_LCLK_IFC_CS3);
 #endif
 
+#ifdef CONFIG_FSL_LAW
 	init_laws();
+#endif
 
 /*
  * Work Around for IFC Erratum A003399, issue will hit only when execution