fscrypt: support legacy inline crypto mode

Add support for legacy inline crypto mode in new v2 FBE
framework to make on disk data format compatible
to new v2 framework.

Change-Id: I3c1384604ee8e022db151299850b0dc330b6a17d
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>
6 files changed