ARM: dts: stm32: switch from fixed to scmi clocks for stm32mp257f-ev1

SCMI clocks are now available, switch from fixed to SCMI clocks.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2 files changed