Fix malformed trace section

Fixes an issue where traces had extremely long trace sections named
"com.android.systemui.volume.VolumeDialogImpl$H: ..."

 - Before: http://screen/9FqnTei2mgQTVcb
 - After: http://screen/6dVEB4u36oorCNm

Test: capture perfetto trace, ensure there is no unusual trace sections
Bug: 238923086
Change-Id: Ia1f3e3a519da2f4e836f723e04edd75d65ee5afe