configs: stm32mp1: disable CMD_MTDPARTS

Disable CMD_MTDPARTS as it's no more needed and it is strongly
encouraged to avoid using this command anymore.
(see comments in ./cmd/Kconfig:2422).

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