Correct android release version number in tests

[ Merge of http://go/wv/15293 ]

b/22916797

Change-Id: I120bae5e656c6d766f8ab7a21d578f17ff22d37a

libwvdrmengine/cdm/test/request_license_test.cpp

@@ -2542,7 +2542,7 @@ TEST(VersionNumberTest, VersionNumberChangeCanary) {
   char release_number[PROPERTY_VALUE_MAX];
   ASSERT_GT(property_get("ro.build.version.release", release_number, "Unknown"),
             0);
-  EXPECT_STREQ("M", release_number)
+  EXPECT_STREQ("6.0", release_number)
       << "The Android version number has changed. You need to update this test "
          "and also possibly update the Widevine version number in "
          "properties_android.cpp.";