module-alsa-card: Support external device in case of using sink2/source2

module-alsa-card: Support external device in case of using sink2/source2

pa_alsa_sink/source_new and pa_alsa_sink/source_free functions were
replaced with pa_dl_* for supporting tizenaudio-sink2/source2 when a
external sound card was inserted.

Additionally, use_tizen_hal property that can turn on/off this
functionality was added just in case.

[Version] 15.0-9
[Issue Type] New Feature

Change-Id: I11fdf2340befa6ab182eb0291ba218859c5e2a09
Signed-off-by: Jaechul Lee <jcsing.lee@samsung.com>