armv8/ls2085a/defconfig: Enable FSL_DSPI, OF_CONTROL and DM support

Freescale DSPI driver has been converted to Driver Model.
The new driver depends on OF_CONTROL, DM, DM_SPI.
This patch enable FSL_DSPI and its dependence configure options.
Signed-off-by: NHaikun Wang <haikun.wang@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

configs/ls2085aqds_defconfig

 CONFIG_ARM=y
 CONFIG_TARGET_LS2085AQDS=y
+CONFIG_DEFAULT_DEVICE_TREE="fsl-ls2085a-qds"
+# CONFIG_SYS_MALLOC_F is not set
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_DM_SPI=y
+CONFIG_FSL_DSPI=y

configs/ls2085ardb_defconfig

 CONFIG_ARM=y
 CONFIG_TARGET_LS2085ARDB=y
+CONFIG_DEFAULT_DEVICE_TREE="fsl-ls2085a-rdb"
+# CONFIG_SYS_MALLOC_F is not set
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_DM_SPI=y
+CONFIG_FSL_DSPI=y