stm32mp: replace printf by log macro in setup_boot_mode

Replace the remaining printf in setup_boot_mode() by log macro
to handle filtering for log features.

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