Revert "msm: kgsl: set power level idle to min freqs"

This reverts commit 8a61baf1ea918b15d46d41827c94f70cb7d992d6.
Revert "msm: kgsl: report gpu frequency correctly in sysfs"

This reverts commit d11923627866b15abd3560f7da251a40cc3ef82e.
Revert "msm: acpuclock-krait: Disable vdd core boost"

This reverts commit 2708a74d718b73fb6db1294315291d45e799fca7.