Driver/DDR: Moving Freescale DDR driver to a common driver

Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.

Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/board/stx/stxssa/ddr.c b/board/stx/stxssa/ddr.c
index 71be3bf..1ccd4c5 100644
--- a/board/stx/stxssa/ddr.c
+++ b/board/stx/stxssa/ddr.c
@@ -9,8 +9,8 @@
 #include <common.h>
 #include <i2c.h>
 
-#include <asm/fsl_ddr_sdram.h>
-#include <asm/fsl_ddr_dimm_params.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
 
 void fsl_ddr_board_options(memctl_options_t *popts,
 				dimm_params_t *pdimm,