Pass NS-load address as ~0UL to the 'set_config_info' function while
updating FW_CONFIG device tree information since it is always loaded
into secure memory.
Change-Id: I64e8531e0ad5cda63f14d838efb9da9cf20beea8
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>