feat(stm32mp1): update IO compensation on STM32MP13

On STM32MP13, two new SD1 and SD2 IO compensations cells are added,
for SDMMC1 and SDMMC2. They have to be managed the same way as the
main compensation cell.

Change-Id: Ib7aa648d65fc98e1613bfb46b0e7dd568fd21002
Signed-off-by: Yann Gautier <yann.gautier@st.com>