ANDROID: dm: add support for passing through derive_raw_secret

Update the device-mapper core to support exposing the inline crypto
support of wrapped keys through the device-mapper device.

derive_raw_secret in keyslot manager is used to derive the software
raw secret from the given wrapped keyblob using the underlying blk
device. Given that the raw_secret is the same for a given wrapped
keyblob the call exits when the first underlying blk-device suceeds.

Bug: 147209885

Test: Validated FBE with wrappedkey_v0 when /data is mounted on a
      dm device.

Change-Id: Ia49ed61613607f8b82f2be0615e5b6d2f7533859
Signed-off-by: Barani Muthukumaran <bmuthuku@codeaurora.org>