arm: socfpga: Fixes: Rename CONFIG_SPL_RESET_SUPPORT to CONFIG_SPL_DM_RESET

Commit bfc6bae8

This commit rename CONFIG_SPL_RESET_SUPPORT to CONFIG_SPL_DM_RESET. Update
with new CONFIG name and enable CONFIG_SPL_DM_RESET when CONFIG_DM_RESET is enabled.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>