libsensors: fix up for lollipop

Change-Id: I5fbc41d5908373081678e787e3b87fbc9f9772cb
build: Avoid poisoning the host binaries with bad ABIs

the vector class symbols are only needed on the target. Don't inject
(or expect) them into the host binaries to avoid multi-device build
conflicts and ABI breakage

Change-Id: I8ff359b7363c258634470c9e7d5209af0616c5e5

Conflicts:
	BoardConfig.mk
Merge branch 'cm-12.0' of github.com:milaq/android_device_hp_tenderloin into cm-12.0