Move sgi575, rdv1, rdn1edge to neoverse-rd product group

All the reference design product for infra are now grouped under
"neoverse-rd" product group. We need to add "neoverse-rd" group
for sgi575, rdv1 and rdn1edge when building SCP-firmware.

Change-Id: I62b679a14a0e963b9c13d7b676d935f74b8e1c58
Signed-off-by: Raghuram Thammiraju <raghuram.thammiraju@arm.com>
3 files changed