f2fs,fscrypt,ice: fix direct IO patch for f2fs

f2fs uses ino|page->index for dun in ICE, and we've missed direct IO path
to assign correct dun.
This should fix ltp/diotest1.

Bug: 77840825
Change-Id: I84d494ed01b30c3410a66ec96145f5425c8a78eb
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
[neersoni@codeaurora.org: Fixed compilation errors.]
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>