mpc83xx: correctly set encryption and I2C bus 0 clock

This patch makes sure the correct mask is applied when setting
the encryption and I2C bus 0 clock in SCCR.
Failing to do so may lead to ENCCM being 0 in which case I2C bus 0
won't function.

Signed-off-by: Norbert van Bolhuis <nvbolhuis@aimvalley.nl>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c
index 491c2e5..8e9c875 100644
--- a/cpu/mpc83xx/cpu_init.c
+++ b/cpu/mpc83xx/cpu_init.c
@@ -106,7 +106,7 @@
 #ifdef CONFIG_SYS_SCCR_ENCCM
 	/* Encryption clock mode */
 	im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) |
-		       (CONFIG_SYS_SCCR_ENCCM << SCCR_PCICM_SHIFT);
+		       (CONFIG_SYS_SCCR_ENCCM << SCCR_ENCCM_SHIFT);
 #endif
 
 #ifdef CONFIG_SYS_SCCR_PCICM