PowerLog: Enable for userdebug and eng builds only

We choose to read the property ro.build.type rather than
using makefile based check:

ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))

Test: verify with AudioFlinger dumpsys (eng, userdebug, user)
Bug: 30572472
Bug: 37743102
Change-Id: I18232793e8a41cf16c3f15d6679f7244e79cacbf
1 file changed
tree: 618e331c9fb2538155114d818084edf45f088046
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk