[SB][Chips] Add SysUI resource tag to Compose chips.

This lets our PlatformScenarioTests find the Compose views to assert
they're visible and/or assert certain facts about them.

Bug: 399756111
Flag: com.android.systemui.status_bar_chips_modernization
Test: atest PlatformScenarioTests:android.platform.test.scenario.sysui.statusbar.ScreenRecordingIcon#screenRecordingIcon_showOnStatusBar
Change-Id: I4f697b3a894fc4d8b7a4a09b90b33d63c41c84bd