Use different component name for SystemMR2Provider2

Bug: b/362507305
Test: atest CtsMediaBetterTogetherTestCases CtsMediaHostTestCasts
Flag: com.android.media.flags.enable_mirroring_in_media_router_2
Change-Id: If373a8f818fbff4c26c9674d8f68d038f27fc099
2 files changed