configs: ls1021atwr: Enable DSPI for LS1021ATWR

DSPI2 can be verified when boot from QSPI now.
Signed-off-by: NYuan Yao <yao.yuan@freescale.com>
Reviewed-by: NJagan Teki <jteki@openedev.com>

include/configs/ls1021atwr.h

@@ -310,12 +310,16 @@
 #define FSL_QSPI_FLASH_NUM		2
 #define CONFIG_SPI_FLASH_STMICRO
 
+/* DSPI */
+#define CONFIG_FSL_DSPI
+#define CONFIG_SPI_FLASH_ATMEL
+#endif
+
 /* DM SPI */
 #if defined(CONFIG_FSL_DSPI) || defined(CONFIG_FSL_QSPI)
 #define CONFIG_CMD_SF
 #define CONFIG_DM_SPI_FLASH
 #endif
-#endif
 
 /*
  * Video