Part of Qualcomm L1 OEMCrypto integration on mako

bug: 8621521

This fixes a problem where insecure audio buffers were being
passed incorrectly as secure buffers to the trusted
environment's OEMCrypto_DecryptCTR.

This is a merge of the following changes from the widevine
git repository to android git repository:

https://widevine-internal-review.googlesource.com/#/c/5163/2
Allow selection of secure/non-secure buffers

https://widevine-internal-review.googlesource.com/#/c/5164/
Pass Secure Buffer Request to CDM

Change-Id: Iec1192a216305c6cf92c359b15b148eccc6ce6ce

libwvdrmengine/cdm/core/src/cdm_engine.cpp

@@ -670,6 +670,7 @@ CdmResponseType CdmEngine::ReleaseSecureStops(
 CdmResponseType CdmEngine::Decrypt(
     const CdmSessionId& session_id,
     bool is_encrypted,
+    bool is_secure,
     const KeyId& key_id,
     const uint8_t* encrypt_buffer,
     size_t encrypt_length,
@@ -684,7 +685,7 @@ CdmResponseType CdmEngine::Decrypt(
     return KEY_ERROR;
   }
 
-  return iter->second->Decrypt(is_encrypted, key_id, encrypt_buffer,
+  return iter->second->Decrypt(is_encrypted, is_secure, key_id, encrypt_buffer,
                                encrypt_length, iv, block_offset,
                                decrypt_buffer, decrypt_buffer_offset,
                                is_video);