Camera: Mark unchanged streams as reconfigured to clear buffer caches

- During stream configuration, unchanged streams are not flagged
as reconfigured. This prevents onStreamReConfigured from being called
which is responsible for clearing buffer caches. If stream
configuration happens before a buffer's on freed sequence is complete,
the buffer cache for that stream remains uncleared. This can result
in a hwasan error due to attempts to access the stale buffer.

Test: Partner verified; CTS camera test
Bug: 341740105
Flag: com.android.internal.camera.flags.enable_stream_reconfiguration_for_unchanged_streams
Change-Id: I8953eae6c814a034dcdb21c63fa8b255e6b0d1ac