KVM: arm64: vgic: Don't reset cpuif/redist addresses at finalize time

KVM: arm64: vgic: Don't reset cpuif/redist addresses at finalize time

Although we are OK with rewriting idregs at finalize time, resetting
the guest's cpuif (GICv3) or redistributor (GICv3) addresses once
we start running the guest is a pretty bad idea.

Move back this initialisation to vgic creation time.

Reviewed-by: Sascha Bischoff <sascha.bischoff@arm.com>
Fixes: a258a383b9177 ("KVM: arm64: gic-v5: Sanitize ID_AA64PFR2_EL1.GCIE")
Link: https://patch.msgid.link/20260323174713.3183111-1-maz@kernel.org
Link: https://patch.msgid.link/20260401103611.357092-2-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>