Convert CONFIG_DW_ALTDESCRIPTOR to Kconfig
This converts the following to Kconfig:
CONFIG_DW_ALTDESCRIPTOR
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/stm32f769-disco_spl_defconfig b/configs/stm32f769-disco_spl_defconfig
index a5dc89c..bae28b4 100644
--- a/configs/stm32f769-disco_spl_defconfig
+++ b/configs/stm32f769-disco_spl_defconfig
@@ -68,6 +68,7 @@
CONFIG_PHY_SMSC=y
CONFIG_DM_ETH=y
CONFIG_ETH_DESIGNWARE=y
+CONFIG_DW_ALTDESCRIPTOR=y
CONFIG_MII=y
# CONFIG_PINCTRL_FULL is not set
CONFIG_SPL_PINCTRL=y