fs: rework f2fs

Signed-off-by: arter97 <qkrwngud825@gmail.com>
hlte: Fix merge fail.

Change-Id: Ic3d337832c587eab65395df8796efb31eef4ac9d
hlte: add flag -Wno-sizeof-pointer-memaccess for now

Change-Id: Ia88c75c2fa30a864c5dc8ceb36effc992a6cd809

Conflicts:
	Makefile