feat(F7): enable HAL Ethernet legacy

Signed-off-by: TLIG Dhaou <[email protected]>

Author: TDhaouST

system/STM32F7xx/stm32f7xx_hal_conf_default.h

@@ -339,6 +339,10 @@ in voltage and temperature.  */
 #include "stm32f7xx_hal_eth.h"
 #endif /* HAL_ETH_MODULE_ENABLED */
 
+#ifdef HAL_ETH_LEGACY_MODULE_ENABLED
+#include "Legacy/stm32f7xx_hal_eth_legacy.h"
+#endif /* HAL_ETH_LEGACY_MODULE_ENABLED */
+
 #ifdef HAL_EXTI_MODULE_ENABLED
 #include "stm32f7xx_hal_exti.h"
 #endif /* HAL_EXTI_MODULE_ENABLED */