drivers: sensor: lsm6dso: Add support for Accel LP filter

Add device tree support for enabling the second low pass filter
(LPF2) for the accelerometer output.

This adds additional low pass on top of the default ODR/2 from
the LPF1 output.

Signed-off-by: Emil Hammarström <emil.a.hammarstrom@gmail.com>
4 files changed