feat(stm32mp1): use only one filter for TZC400 on STM32MP13

On STM32MP13, there is only 1 DDR port, hence only 1 TZC400 filter.

Change-Id: I4f6750022cdaf658cd209a4bf48a6cdb0717020e
Signed-off-by: Yann Gautier <yann.gautier@st.com>
1 file changed