Do not use RpcService in OPENFLOW components

Description

A quick grep is showing these users of deprecated API:

./openflowplugin/applications/arbitratorreconciliation/impl/src/main/java/org/opendaylight/openflowplugin/applications/arbitratorreconciliation/impl/ArbitratorReconciliationManagerImpl.java:                rpcProviderService.registerRpcImplementation(ArbitratorReconcileService.class, this, Set.of(path));
./openflowplugin/applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/impl/DeviceMastership.java:            reg = rpcProviderService.registerRpcImplementation(FrmReconciliationService.class, reconcliationService,
./openflowplugin/openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/StatisticsManagerImpl.java:                .registerRpcImplementation(StatisticsManagerControlService.class, this);
./openflowplugin/openflowplugin-impl/src/test/java/org/opendaylight/openflowplugin/impl/OpenFlowPluginProviderImplTest.java:        when(rpcProviderRegistry.registerRpcImplementation(eq(StatisticsManagerControlService.class), any()))
./openflowplugin/openflowplugin-impl/src/test/java/org/opendaylight/openflowplugin/impl/rpc/RpcContextImplTest.java:        verify(rpcProviderRegistry, times(1)).registerRpcImplementation(TestRpcService.class, serviceInstance,
./openflowplugin/openflowplugin-impl/src/test/java/org/opendaylight/openflowplugin/impl/rpc/RpcContextImplTest.java:        when(rpcProviderRegistry.registerRpcImplementation(eq(TestRpcService.class), eq(serviceInstance), anySet()))
./openflowplugin/test-provider/src/main/java/org/opendaylight/openflowplugin/test/OpenflowpluginGroupTestServiceProvider.java:        setGroupRegistration(rpcRegistry.registerRpcImplementation(SalGroupService.class, this, ImmutableSet.of(
./openflowplugin/test-provider/src/main/java/org/opendaylight/openflowplugin/test/OpenflowpluginMeterTestServiceProvider.java:        setMeterRegistration(rpcRegistry.registerRpcImplementation(SalMeterService.class, this, ImmutableSet.of(
./openflowplugin/test-provider/src/main/java/org/opendaylight/openflowplugin/test/OpenflowpluginTableFeaturesTestServiceProvider.java:        setTableRegistration(rpcRegistry.registerRpcImplementation(SalTableService.class, this, ImmutableSet.of(
./openflowplugin/test-provider/src/main/java/org/opendaylight/openflowplugin/test/OpenflowpluginTestServiceProvider.java:        setFlowRegistration(rpcRegistry.registerRpcImplementation(SalFlowService.class, this, ImmutableSet.of(

Convert them to new-style yang.binding.Rpc-based implementations.