Revert "msm: Remove PMEM dependency for MSM7KV2_AUDIO"

This reverts commit 6671ec47aaaf744de3141cc318a49a813b771194.
Revert "msm: Remove all references to CONFIG_ANDROID_PMEM"

This reverts commit c0842f50ae12da3f7a4aa07a1d99ee1741010f5d.
Revert "msm: kgsl: Remove all reference to CONFIG_ANDROID_PMEM"

This reverts commit d3e4fe3f7ee1698f92230a9b94eefedebfc1f8ec.