drivers/sensor: lsm6dso: Add drdy_pulsed property in DT

Add drdy_pulsed property in Device Tree in order to select how
data ready irq should behave (either pulsed or latched mode).
Moreover change/fix the API called to set drdy irq mode.
(fix #51944)

Signed-off-by: Armando Visconti <armando.visconti@st.com>