power: Allow passing socket name from config

 * MPDecision on Mako is different from Flo.

Change-Id: Ibbff7d97d841ad379091c7df8da8dc04de4f4d5f
QCOM BRINGUP hw/qcom/power add some more build flags checks

Summary:
power: Allow passing socket name from config

 * MPDecision on Mako is different from Flo.

Change-Id: Ibbff7d97d841ad379091c7df8da8dc04de4f4d5f

power: Skip build if perf enabled

Change-Id: Ia20f3ef8752d6df674ed9d7850cc9dc271638e58

Test Plan: confirm no derp on nexus devices and clean merge for history

Reviewers: synergy, randall.rushing, raymanfx, anders3408

Differential Revision: http://review.codefirex.com/D157