plat/arm: don't provide NT_FW_CONFIG when booting hafnium

NT_FW_CONFIG file is meant to be passed from BL31 to be consumed by
BL33, fvp platforms use this to pass measured boot configuration and
the x0 register is used to pass the base address of it.

In case of hafnium used as hypervisor in normal world, hypervisor
manifest is expected to be passed from BL31 and its base address is
passed in x0 register.

As only one of NT_FW_CONFIG or hypervisor manifest base address can be
passed in x0 register and also measured boot is not required for SPM so
disable passing NT_FW_CONFIG.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Ifad9d3658f55ba7d70f468a88997d5272339e53e
2 files changed