powerpc/p2041: fix I2C controller's offset

Without this patch, SPD access will fail which leads to DDR init fail.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Acked-by: York Sun <yorksun@freescale.com>

include/configs/P2041RDB.h

@@ -354,10 +354,10 @@ unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_I2C_FSL
 #define CONFIG_SYS_FSL_I2C_SPEED	400000
 #define CONFIG_SYS_FSL_I2C_SLAVE	0x7F
-#define CONFIG_SYS_FSL_I2C_OFFSET	0x3000
+#define CONFIG_SYS_FSL_I2C_OFFSET	0x118000
 #define CONFIG_SYS_FSL_I2C2_SPEED	400000
 #define CONFIG_SYS_FSL_I2C2_SLAVE	0x7F
-#define CONFIG_SYS_FSL_I2C2_OFFSET	0x3100
+#define CONFIG_SYS_FSL_I2C2_OFFSET	0x118100
 
 /*
  * RapidIO