bcmdhd: use firmware from /vendor/firmware

Change-Id: Id5643ef1861af0dd0617acc8f0decbbd5c2a1240
bcmdhd: Remove redundant flag
msm8660: Build memtrack lib
msm8660: scorpion optimization doesn't exist, uses QCOM instead ..

Change-Id: I039ed2182e47f23f8ff600f786fb607528820450
msm8660: Build power.msm8660

We're now using CM Powerhal. but the library wasn't built.
Fix it
msm8660: Use CM PowerHAL variant

Change-Id: I8327422dbfd530fd08289b2ceb1bc9951b52eb30