Revert "Fix the following compile error:"

This reverts commit 47cc01bf0b44e979c533097b608489c0810f41f4.
Makefile: improve build flags
Update gitignore to avoid more build.sh changes
Revert "drivers: cpufreq: address issue where cpus forget their clock speeds"

This reverts commit d03f92c1f730ec9b87ac9d94a5563774a2cbcd4f.
Revert "msm: cpufreq: Unable to handle kernel NULL pointer"

This reverts commit 8aeb43859fa9e3eb381e28c7ec23d21c0aa979f2.