Revert "defconfigs: mogami: Enable SERIAL_MSM_HS_NO_DMA_WAKELOCK"

This reverts commit 6abdb4be8ea5f802f237ca60cd9cefe790dcbe6e.
Revert "tty: msm_serial_hs: Implement SERIAL_MSM_HS_NO_DMA_WAKELOCK"

This reverts commit fbe9b9c76ba6f4efd68edbff5b8d156bbdff8aad.
qdsp5v2: Fix a null pointer dereference.

If ACDB data has not been filled and audio is going to be disabled, audpp_cb
accesses invalid memory address.

This scenario seems to happen when no audio is processed, but audio device is
opened and later closed.

Change-Id: I64724c7a6da8aa2c6da723a8c1122a5ae8d6796f