Revert "PowerHal: removed hispeed_freq defining, now hardcoded in the kernel."

This reverts commit f128f968c850ec410f40b726d4470739b11fb228.

Conflicts:
	power/power_tuna.c
Merge pull request #1 from atomicspaceindian/kitkat

Revert "PowerHal: removed hispeed_freq defining, now hardcoded in the ke...