Add LPtimer definitions, depending on features they provide:
- lptimer1 & 2 can act as PWM, trigger and encoder/counter
- lptimer3 can act as PWM and trigger
- lptimer4 & 5 can act as PWM
Signed-off-by: NFabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: NAlexandre Torgue <alexandre.torgue@st.com>