Revert "msm: Update PM architecture from HTC One GPE kernel"

This reverts commit c00a43a529d6d97a31b5b31037bbb1bb66bed8ce.
msm: qdsp6v2: Sync with sultan-kernel-pyramid-pure

Signed-off-by: Sultanxda <sultanxda@gmail.com>
msm: pm-data: Clean up and always enable idle & suspend

Sensation only has 2 CPU cores, so remove the excess pm_mode definitions. Also enable idle & suspend for RETENTION.

Signed-off-by: Sultanxda <sultanxda@gmail.com>