Port Emulator camera and location CTS fixes from mnc-emu-dev

Port Emulator camera and location CTS fixes from mnc-emu-dev

Fix Emulator CTS test for video performance
   https://googleplex-android-review.git.corp.google.com/933627
   If2ec61f2fbd3e8dd314b93b4d81c32f76847f990

Fix Emulator CTS tests for Camera, Location, Sensors, Telephony
   https://googleplex-android-review.git.corp.google.com/915391
   Icc42989d094856f13bd3655e528ebdaa8890c2b5

Fixes these CTS tests in NYC:
    android.app.cts.SystemFeaturesTest#testLocationFeatures
    android.app.cts.SystemFeaturesTest#testSensorFeatures

BUG: http://b/31751499

Test: ran camera CTS tests
Change-Id: Ic108b393e481930c2fe1a3d62d621765f96d2126
(cherry picked from commit 5c9383aeec4f92a6286ed3508e26abfcebf5b87a)