The silent switch, `-s`, only works for building UefiPayloadPkg. Guard
it against the relevant Kconfig option so that it doesn't cause
problems with other targets.
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I5a5df636e6484a435c849c6d19c7cb61e8e62ee6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68181
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>