Update OEMCrypto test comments and logs

Merge from Widevine repo of http://go/wvgerrit/121886

This CL merges some changes from branch rvc-dev to sc-dev
that prepared it for merge.

One change is that the unit tests now say they are part of
Android S instead of R.

Bug: 180546871
Change-Id: I2ebbd8f7b8586389ebb75f3743a2dc2ad8caa214

libwvdrmengine/oemcrypto/test/fuzz_tests/oemcrypto_fuzz_helper.h

@@ -36,9 +36,7 @@ class OEMCryptoLicenseAPIFuzz : public InitializeFuzz {
     session_.GenerateNonce();
   }
 
-  ~OEMCryptoLicenseAPIFuzz() {
-    session_.close();
-  }
+  ~OEMCryptoLicenseAPIFuzz() { session_.close(); }
 
   LicenseRoundTrip& license_messages() { return license_messages_; }