This branch adds support for the nucleo_f303k8 board.
The configuration is based on the nucleo_l011k4,
the f302r8 and the ST reference manual.
I had successfully tested the following sample code:
blinky
blink_led (uses TIM2_CH1 on PA0)
button
hello_world
Signed-off-by: Sebastian Schwabe <sebastian.schwabe@mailbox.tu-dresden.de>
