History for mbed-os / targets / TARGET_STM / TARGET_STM32L0 / TARGET_STM32L053x8 / TOOLCHAIN_IAR / startup_stm32l053xx.S

https://github.com/STMicroelectronics/STM32CubeL0

+ STM32Cube_FW_L0_V1.10.0 original files
+ targets.json update introducing subfamily level