Include the STM32Cube_FW to support the BLE of the stm32wb55

Only in case STM32WBxx device defined

Signed-off-by: Francois Ramu <[email protected]>

Author: FRASTM

Diff for: src/utility/STM32Cube_FW/README.md

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+## Source
+
+[STMicroelectronics/STM32CubeWB Release v1.8.0](https://github.com/STMicroelectronics/STM32CubeWB/releases/tag/v1.8.0)
+- Application: [BLE_TransparentMode](https://github.com/STMicroelectronics/STM32CubeWB/tree/v1.8.0/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentMode)
+