mach-stm32: Rename CONFIG_SPL_RESET_SUPPORT to CONFIG_SPL_DM_RESET
CONFIG_SPL_RESET_SUPPORT has been renamed to CONFIG_SPL_DM_RESET, update
this Kconfig file.
Fixes: bfc6bae8fa1f ("reset: Rename CONFIG_SPL_RESET_SUPPORT to CONFIG_SPL_DM_RESET")
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>