Terminate Level 1 OEMCrypto on Initialization Error

Cherry pick of the widevine change
https://widevine-internal-review.googlesource.com/#/c/12082/

If the level 1 oemcrypto library loads and initializes, but has the
wrong version or does not have a valid keybox, then the level 3
fallback is used.   However, in those cases, the level 1 was not
terminated properly.  This caused a resource leak on some platforms.

With this CL, in OEMCrypto_Initialize, the level 1 library Terminate
is called if its Initialize was called and the level 1 library will
not be used.

bug: 18755226
Change-Id: I56e7d3349eeebd94f3fa8c4a1f4b21781cc7428b

libwvdrmengine/cdm/core/src/oemcrypto_adapter_dynamic.cpp

@@ -280,6 +280,7 @@ class Adapter {
     if (level1_.version < minimum_version) {
       LOGW("liboemcrypto.so is version %d, not %d. Falling Back to L3.",
            level1_.version, minimum_version);
+      level1_.Terminate();
       return false;
     }
     if( level1_.version == 8 ) {
@@ -303,11 +304,13 @@ class Adapter {
     std::string filename;
     if (!wvcdm::Properties::GetFactoryKeyboxPath(&filename)) {
       LOGW("Bad Level 1 Keybox. Falling Back to L3.");
+      level1_.Terminate();
       return false;
     }
     ssize_t size = file.FileSize(filename);
     if (size <= 0 || !file.Open(filename, file.kBinary | file.kReadOnly)) {
       LOGW("Could not open %s. Falling Back to L3.", filename.c_str());
+      level1_.Terminate();
       return false;
     }
     uint8_t keybox[size];
@@ -315,6 +318,7 @@ class Adapter {
     if (level1_.InstallKeybox(keybox, size) != OEMCrypto_SUCCESS) {
       LOGE("Could NOT install keybox from %s. Falling Back to L3.",
            filename.c_str());
+      level1_.Terminate();
       return false;
     }
     LOGI("Installed keybox from %s", filename.c_str());