mx6dlsabresd: Use its own DCD table

Currently mx6dlsabresd shares the same DCD settings with the nitrogen board.

Provide a DCD configuration file specific to mx6dlsabresd with the settings
recommended by the Freescale hardware team.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/configs/mx6dlsabresd_defconfig b/configs/mx6dlsabresd_defconfig
index 9ce960e..7f6cdff 100644
--- a/configs/mx6dlsabresd_defconfig
+++ b/configs/mx6dlsabresd_defconfig
@@ -1,3 +1,3 @@
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl.cfg,MX6DL"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6sabresd/mx6dlsabresd.cfg,MX6DL"
 CONFIG_ARM=y
 CONFIG_TARGET_MX6SABRESD=y