vold: Enable legacy support for wrapped key

Legacy wrapped key support was dropped while merging changes
to support multiple versions of dm-default key driver in kernel.
Fix this by calling legacy API to check wrapped key support for
metadata encryption.

CRs-Fixed: 2678344
Change-Id: I7d9efec09ddf7169cf0b1114b4e16b9fe38cad4b
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>

MetadataCrypt.cpp

@@ -39,6 +39,7 @@
 #include "Checkpoint.h"
 #include "CryptoType.h"
 #include "EncryptInplace.h"
+#include "FsCrypt.h"
 #include "KeyStorage.h"
 #include "KeyUtil.h"
 #include "Keymaster.h"
@@ -296,6 +297,8 @@ bool fscrypt_mount_metadata_encrypted(const std::string& blk_device, const std::
         }
         options.cipher = legacy_aes_256_xts;
         options.use_legacy_options_format = true;
+        if (is_metadata_wrapped_key_supported())
+            options.use_hw_wrapped_key = true;
         options.set_dun = android::base::GetBoolProperty("ro.crypto.set_dun", false);
         if (!options.set_dun && data_rec->fs_mgr_flags.checkpoint_blk) {
             LOG(ERROR)