arm: socfpga: system: Rework sysmgr_enable_warmrstcfgio()

Rework sysmgr_enable_warmrstcfgio() into sysmgr_config_warmrstcfgio(),
which allows both enabling and disabling the warm reset config I/O
functionality.

Signed-off-by: Marek Vasut <marex@denx.de>
3 files changed