Add Devicetree overlay for samples basic/blinky_pwm and drivers/led/pwm
for frdm_mcxc242 board to set appropriate tpm clock source and
to enable pwmleds.
Signed-off-by: Michal Smola <michal.smola@nxp.com>
With over a dozen LED samples, grouping them in a common drivers/led/
folder helps keep things tidy and lays the groundwork for further
improvements in the way samples are showing up in the docs.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>