[Android] Fix EventLoop issue when commissioner restart

[yhoyoon]

Problem

There is a problem that the EventLoop terminates as soon as it starts when the Android platform-based commissioner is restarted. Restarting commissioner means calling the following methods in order.

• ChipDeviceController.loadJni()
• androidPlatform = new AndroidPlatform()
• chipDeviceController = new ChipDeviceController()
• ChipDeviceController.shutdownCommissioning()
• androidPlatform = new AndroidPlatform()
• chipDeviceController = new ChipDeviceController()

For reference, this commissioner is not implemented as a singleton.

Change overview

mShouldRunEventLoop is set to false by calling "shutdownCommissioning()" method. In this state, to reinitialize the commissioner and restart the EventLoop, call the "new ChipDeviceController()" constructor. The EventLoop then terminates as soon as it starts.
This change sets mShouldRunEventLoop to true when initializing the EventLoop, fixing an issue where the EventLoop terminates as soon as it starts when the commissioner restarts.

Testing

Restart the Android platform-based commissioner.

[github-actions]

PR #26216: Size comparison from de0dfcf to 5078f58

Full report (1 build for cc32xx)

platform	target	config	section	de0dfcf	5078f58	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	643249	643249	0	0.0
			(read/write)	203848	203848	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197248	197248	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	933224	933224	0	0.0
			.debug_aranges	87792	87792	0	0.0
			.debug_frame	302140	302140	0	0.0
			.debug_info	20330829	20330829	0	0.0
			.debug_line	2687904	2687904	0	0.0
			.debug_loc	2838960	2838960	0	0.0
			.debug_ranges	288072	288072	0	0.0
			.debug_str	3042335	3042335	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104401	104401	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	377963	377963	0	0.0
			.symtab	256976	256976	0	0.0
			.text	536728	536728	0	0.0

[andy31415]

Seems the same like #26195 however that one has additional logic and a unit test.

[yhoyoon]

@andy31415 Thank you, I missed #26195 so I'm closing this PR.