ARM: dts: stm32: change default minimal buck1 value on stm32mp157

Minimal value is the value set during boot or before suspend.
We must ensure that the value is a functional value to boot.

Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2 files changed