QCPERF + vendor/extra - need boardconfig and product.mk to make libqc-opt happy

Change-Id: I4671568dea8e8c09edf949ac4be6f4a06eb387b5
Show TARGET_RECOVERY_VARIANT during dumpvar.mk
Actual var is RECOVERY_VARIANT however using it makes things very messy!
Change-Id: I0b4058dc7441abcf6ef820cc916d1a6805644bd8
[WIP]: New changes needed for msm-3.5 clang

Change-Id: If41682c7265645056be757e58eb14b8707ce7438