ASoc: bolero: update logic to disable VA_MCLK

When adsp SSR happens, VA_MCLK enabled by VA_SWR_PWR widget will
not be disabled as ADSP is down and it cannot enable TX_MCLk before
disabling VA_MCLK. After disabling SVA, VA_MCLk is left open.
Add dev_up flag to indicate SSR and close VA_MCLK during SSR.

Change-Id: I4cd08419be4035e2f337ab41348a814534480db6
Signed-off-by: Meng Wang <mengw@codeaurora.org>
Signed-off-by: Soumya Managoli <quic_c_smanag@quicinc.com>