rtsp-media: Handle set state when preparing.
Handle the situation when a call to gst_rtsp_media_set_state is done when media status is preparing.
Also add unit test for this scenario.
Change-Id: I972f9a320fba9d864574b1e08dcbd3a166d86958
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Handle the situation when a call to gst_rtsp_media_set_state is done when media status is preparing.
Also add unit test for this scenario.
Change-Id: I972f9a320fba9d864574b1e08dcbd3a166d86958