ASoC: msm: add api to query status of Audio services in QDSP6

After QDSP6 boots audio services might take some time to comes to a
state where they can serve clients on Host Processor. Add an api to
query status of Audio services in QDPS6.

CRs-Fixed: 487983
Change-Id: Ib222874ce645af78bd5647b45506b50af1f6062d
Signed-off-by: Kiran Kandi <kkandi@codeaurora.org>