configs: ls1012a: Enable CONFIG_SPI_FLASH_SPANSION in defconfigs

Since CONFIG_FSL_QSPI is already enabled for LS1012A in defconfigs. Also
enable CONFIG_SPI_FLASH_SPANSION for LS1012A boards having spansion
flashes.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/ls1012a2g5rdb_qspi_defconfig b/configs/ls1012a2g5rdb_qspi_defconfig
index 18b72b4..0dd358a 100644
--- a/configs/ls1012a2g5rdb_qspi_defconfig
+++ b/configs/ls1012a2g5rdb_qspi_defconfig
@@ -44,6 +44,7 @@
 CONFIG_MTD=y
 CONFIG_DM_SPI_FLASH=y
 # CONFIG_SPI_FLASH_BAR is not set
+CONFIG_SPI_FLASH_SPANSION=y
 # CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
 CONFIG_FSL_PFE=y
 CONFIG_DM_ETH=y