bcmdhd: restore lost makefile flag from driver update merge
cpufreq: add cpu boost but do not build it
Added to source but won't be compiled in public releases due to the random reboots in recovery

https://github.com/CyanogenMod/android_kernel_htc_m7/commit/fdac6cedcfa4a7453cb10cc9c00d4551a893abb0
https://github.com/CyanogenMod/android_kernel_htc_m7/commit/f5709f21880351f823bad570c96aac7c39a72e6b
https://github.com/CyanogenMod/android_kernel_htc_m7/commit/10b35dc9673876547d7ed444dd2a130d66eac897
https://github.com/CyanogenMod/android_kernel_htc_m7/commit/af196761b812fcc70005fe65c19171873be01cb7