[stm32l4] select PKG_USING_STM32L4_HAL_DRIVER

bsp/stm32/libraries/Kconfig

@@ -45,6 +45,7 @@ config SOC_SERIES_STM32L4
     bool
     select ARCH_ARM_CORTEX_M4
     select SOC_FAMILY_STM32
+    select PKG_USING_STM32L4_HAL_DRIVER
 
 config SOC_SERIES_STM32L5
     bool