m7-common: commonize some BoardConfig defines

Change-Id: I1641f8766d66d20905d29f6cd1e1a694916c83b1
m7-common: Re-enable performance profiles

Change-Id: I9ec62f112c768a0341f47092f0aa6f6a10367118
m7-common: update wifi.active power profile

Fix wifi.active power consumption value.

This addresses CYAN-3560.

Change-Id: I0ad54f21e8b2bfa0402cf600cba7aeea8619ed28