Revert "msm: pm2: Call cpr suspend and resume in PC scenario too"

This reverts commit 83495bafa5c3a71028532deadd450681afe1c5e2.
Revert "msm: pm2: Restore interrupt subsystem from sleep."

This reverts commit cf3adf5664ba383194b625a50902a872e0781d5e.
Revert "msm: pm2: Update SPC LPM stats correctly"

This reverts commit 61259e82c0f4190b525d34ae0892313e0cc1595e.