Revert "ramdisk: source: init.hammerhead.rc: Set minfreq to 96MHz"

This reverts commit 6eea08709de20ba84427066750fb8806c213da9a.
Revert "arch: arm: mach-msm: acpuclock-8974: Set standby frequency to 192MHz"

This reverts commit a17c27a23858ebf58f9ebdb596da064e83c8ed04.
Revert "arch: arm: mach-msm: acpuclock-8974: Add CPU underclock"

This reverts commit 296eb6bb5941a7fc998277ecec016fc35a4fe2c0.
sultan_defconfig: Set min freq back to 300MHz