mpc83xx: Add the support for MPC8315ERDB board

The features list:
- Boot from NOR Flash
- DDR2 266MHz hardcoded configuration
- Local bus NOR Flash R/W operation
- I2C, UART, MII and RTC
- eTSEC0/1 support
- PCI host

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/CREDITS b/CREDITS
index 1130c9e..edf825c 100644
--- a/CREDITS
+++ b/CREDITS
@@ -305,7 +305,7 @@
 
 N: Dave Liu
 E: daveliu@freescale.com
-D: Support for MPC832x, MPC8360, MPC837x
+D: Support for MPC8315, MPC832x, MPC8360, MPC837x
 W: www.freescale.com
 
 N: Raymond Lo