KVM: arm64: Invalidate EL1&0 TLB entries for all VMIDs in nvhe hyp init

KVM: arm64: Invalidate EL1&0 TLB entries for all VMIDs in nvhe hyp init

When initialising the nVHE hypervisor, we invalidate potentially stale
TLB entries for the EL1&0 regime using a 'vmalls12e1' invalidation.
However, this invalidation operation applies only to the active VMID
and therefore we could proceed with stale TLB entries for other VMIDs.

Replace the operation with an 'alle1' which applies to all entries for
the EL1&0 regime, regardless of the VMID.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Fixes: 1025c8c0c6ac ("KVM: arm64: Wrap the host with a stage 2")
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240814123429.20457-2-will@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>