Backport #1388 to fix Netty native build failure

[sdeleuze]

See #1388, Spring Boot 2.5 is impacted as well.

[sdeleuze]

Users impacted could likely workaround with:

@InitializationHint(initTime=InitializationTime.RUN,
		packageNames = { "io.netty.channel.epoll", "io.netty.internal.tcnative" },
		types = {
				DefaultChannelId.class,
				Socket.class,
				CleartextHttp2ServerUpgradeHandler.class,
				Http2ConnectionHandler.class,
				HostsFileEntriesResolver.class,
				BrotliDecoder.class,
				OpenSslPrivateKeyMethod.class,
				OpenSslAsyncPrivateKeyMethod.class,
				ReferenceCountedOpenSslEngine.class
		})