f2fs:sync with revision branch

Sometime new patches are released, or the repo is rebased,for that reason it is always good to make a squash.
Here switch back from test_and_clear_bit_le to clear_bit_le since it has been backported.
manta:OC:corrected ppl that way higher frequencies should be more stable

Thank to sergi and ktoonsez
manta_defconfig:compiling now intelliactive
cpufreq:intelliactive:tweaked tunnable for daily usage that doesn't coresspond to gaming