stm32: force the use of Adafruit BusIO v1.17.2 as 1.17.3 won't compile on this platform

Author: fdlamotte

platformio.ini

@@ -107,6 +107,7 @@ build_src_filter = ${arduino_base.build_src_filter}
   +<helpers/stm32>
 lib_deps = ${arduino_base.lib_deps}
   file://arch/stm32/Adafruit_LittleFS_stm32
+  adafruit/Adafruit BusIO @ 1.17.2
 
 [sensor_base]
 build_flags =