Revert "qdsp5v2: Fix a null pointer dereference."

This reverts commit 02f4cca3471dc191716f05c418d428b58943984e.
Revert "msm: qdsp5v2: Minor code sync."

This reverts commit 27a0f54ea4c3305408da32a569b39f41cd3e00f4.
Revert "msm: qdsp5v2: Convert all audio devices to ION."

This reverts commit d1eb78c906b2822d54b7d8f13e0a1e4fd72f334d.