sys/fuchsia: generate descriptions for more services

[dvyukov]

We now generate descriptions for a bunch of fuchsia services in sys/fuchsia/fidlgen:

	"zircon": {
		"fuchsia-mem",
		"fuchsia-cobalt",
		"fuchsia-ldsvc",
		"fuchsia-process",
		"fuchsia-io",
		"fuchsia-net",
		"fuchsia-net-stack",
	},
	"garnet": {
		"fuchsia.devicesettings",
		"fuchsia.mediacodec",
		"fuchsia.timezone",
		"fuchsia.power",
		"fuchsia.scpi",
	},

1. Are all of them enabled by default in garnet layer? In some kernel logs I see:

[01487.670] 366453.367521> PageFault: 445610 free pages
[01487.671] 366453.367521> PageFault: MemoryUsed: proc  1128    8M 'fshost'
[01487.671] 366453.367521> PageFault: MemoryUsed: proc  2864   86M 'blobfs:/blob'
[01487.671] 366453.367521> PageFault: MemoryUsed: proc  4324    9M 'netstack'
[01487.671] 366453.367521> PageFault: MemoryUsed: proc  9048   78M '/tmp/syz-fuzzer'
[01487.679] 366453.367521> PageFault: 445610 free pages

Are other services work without processes somehow?

2. Are there other services? If yes, we need to generate descriptions for them too.

[dvyukov]

@flowerhack @dokyungs FYI

[mvanotti]

Dmitry, what criteria did you use to get the first set of services there? (was it you or was it @dokyungs ?) I would like to add a couple more services.

[dvyukov]

That was @dokyungs. I don't have any special criteria. Just what is enabled in our build.

[dvyukov]

@pascallouisperez I think you looked at this last. Is there anything else left? If yes, what are the reasons for not adding these services?

[lxjlxk]

./bin/syz-manager -config config.json的时候出现2022/04/27 22:40:32 failed to parse config file: unexpected end of JSON input是什么原因？