Use the connector_test() helper macro for chamelium hpd, audio, edid, and
frames tests to iterate over and test all matching connected ports. This
ensures clean skipping and consistent connector handling across DP/HDMI/VGA
tests, and avoids unintended execution of unrelated fixtures.

Signed-off-by: Mohammed Bilal <mohammed.bilal@intel.com>

Reviewed-by: Kunal Joshi <kunal1.joshi@intel.com>