feat(stm32mp2-fdts): add OTP nodes in STM32MP251 SoC DT file

Add the BSEC node in STM32MP25 device tree file, with the OTP fuses
that will be used by TF-A.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I1ffdbd17829f4adf7b113ae0bec7547a6d1b4bac
1 file changed