mx6sxsabresd: Enable DM_PCI

Enale DM_PCI support in order to avoid board removal from
the project.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/mx6sxsabresd_defconfig b/configs/mx6sxsabresd_defconfig
index 5150e3a..7cf6729 100644
--- a/configs/mx6sxsabresd_defconfig
+++ b/configs/mx6sxsabresd_defconfig
@@ -51,6 +51,7 @@
 CONFIG_PHYLIB=y
 CONFIG_MII=y
 CONFIG_PCI=y
+CONFIG_DM_PCI=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y
 CONFIG_DM_PMIC=y