runtime-api/ParachainHost: submit_report_dispute_lost

[ordian]

Part of #5947.

This will be similar to

polkadot/runtime/kusama/src/lib.rs

Lines 1789 to 1802 in 8801373

	fn submit_report_equivocation_unsigned_extrinsic(
	equivocation_proof: fg_primitives::EquivocationProof<
	<Block as BlockT>::Hash,
	sp_runtime::traits::NumberFor<Block>,
	>,
	key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,
	) -> Option<()> {
	let key_owner_proof = key_owner_proof.decode()?;
	Grandpa::submit_unsigned_equivocation_report(
	equivocation_proof,
	key_owner_proof,
	)
	}

that will call into

polkadot/runtime/parachains/src/disputes/slashing.rs

Line 706 in 8801373

fn submit_unsigned_slashing_report(