[NUCLEO_F302R8] Add uvision4 exporter + correct cortex name
[NUCLEO_L152RE] Change system clock to 32MHz + restart PLL after deepsleep
[NUCLEO_L152RE] Add more ANALOG_IN, ANALOG_OUT, PWM, SERIAL and SPI pins
[NUCLEO_L152RE] Change the check of I2C clock frequency + update stop function + cleanup
[NUCLEO_L152RE] Typo corrections
Merge pull request #221 from bcostm/master

[NUCLEO_F302R8] and [NUCLEO_L152RE] updates