HDMI: On <Report PA> on the same active path, send <Set Stream Path>

When a new device is connected and sends <Report PA> with same PA as the
active path, it might not be aware that is on the active path. The
TV sends a <Set Stream Path> to announce that such that the device will
broadcast <Active Source>.

Test: atest com.android.server.hdmi
Flag: EXEMPT bugfix
Bug: 374218178
Change-Id: I0e853bfbfb09ea863b1f59bb78edc7d83c8ea316