rng: stm32mp1_rng: add conditional reset feature for STM32MP13x

New IP adds a conditional reset that impact the clock
error management. It is now linked to a new compatible.

Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>