Disable OEMCrypto tests that install a test keybox.

Because we do not want to accidentally install a test keybox on a
production device, most of the oemcrypto unit tests are being disabled
by default.

If you wish to run these tests, you can override this choice, by
running:
adb shell /system/bin/oemcrypto_test --gtest_also_run_disabled_tests

This change prompts for and requires positive confirmation before
running the disabled tests on a device that has a non-test keybox
already installed.

Bug: 8907626

Merge of https://widevine-internal-review.googlesource.com/#/c/5531/
from the Widevine CDM repository

Change-Id: Ib8e3605129ebf0861b4af15d04676f7a06cc5b78

libwvdrmengine/run_all_unit_tests.sh

@@ -8,6 +8,7 @@ fi
 echo "waiting for device"
 adb root && adb wait-for-device remount && adb sync
 
+adb shell /system/bin/oemcrypto_test
 adb shell /system/bin/request_license_test
 adb shell /system/bin/policy_engine_unittest
 adb shell /system/bin/libwvdrmmediacrypto_test