ASoC: msm: qdsp6v2: destroy mvm and cvs sessions during LCH

With new voice architecture, single voice session will be used
to support different call types such as Voice/VoLTE/VoWLAN etc.
Destroy MVM and CVS sessions during local call hold so that only
one active session is present at a time due to memory constraints.

Change-Id: Ie180ade5e92106a3c1e74b9468faec9316ea726a
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
Signed-off-by: Narsinga Rao Chella <nrchella@codeaurora.org>