Revert "Disable pmem_audio devices and increase ION carveout to 5MB"

This reverts commit daa3fcf31a14ee86530015b77b38207a01885f05.
Revert "msm: audio: qdsp6v2: Replace PMEM with ION in LPA driver"

This reverts commit 70ac93dd96ab09fc60080654e386effa946b4240.
Revert "msm: audio: qdsp6v2: Replace PMEM with ION in Audio Decoder drivers"

This reverts commit d00c5f8b3228cfedb1810224da558cc003f9dd3c.
Revert "msm: Asoc: audio: Migrate to ION from pmem, dma alloc"

This reverts commit 30ef3b5031de71dd34d82d0aeb63076bf13376f5.