arm64: dts: nuvoton: npcm8xx: Drop the GIC "ppi-partitions" node

arm64: dts: nuvoton: npcm8xx: Drop the GIC "ppi-partitions" node

The Arm GIC "ppi-partitions" node is only relevant to GICv3 and makes no
sense for GICv2 implementations which the GIC-400 is. PPIs in GICv2 have
no CPU affinity.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250609203721.2852879-1-robh@kernel.org
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20250710-nuvoton-arm64-dt-v1-1-ec7db96ea507@codeconstruct.com.au
Signed-off-by: Arnd Bergmann <arnd@arndb.de>