The stratix 10 reset manager ad-hoc code in arch/arm contains an unused
function 'reset_deassert_peripherals_handoff' that has been added from
the beginning. As this is probably a result of copying the gen5 reset
manager and this function has never been used, remove it.
Signed-off-by: NSimon Goldschmidt <simon.k.r.goldschmidt@gmail.com>

Software must never reset FPGA2SOC bridge. This bridge must only be
reset by POR/COLD/WARM reset. Asserting the FPGA2SOC reset by software
can cause the SoC to lock-up if there are traffics being drived into
FPGA2SOC bridge.
Signed-off-by: NAng, Chee Hong <chee.hong.ang@intel.com>

Add helper function cpu_has_been_warmreset() to check
if CPU is from warm reset boot.
Signed-off-by: NLey Foon Tan <ley.foon.tan@intel.com>

Remove code from the reset manager that is never called.
Signed-off-by: NLey Foon Tan <ley.foon.tan@intel.com>

Add Reset Manager driver support for Stratix SoC
Signed-off-by: NChin Liang See <chin.liang.see@intel.com>
Signed-off-by: NLey Foon Tan <ley.foon.tan@intel.com>