Staging: android: binder: More offset validation.

Make sure offsets don't point to overlapping flat_binder_object
structs.

Change-Id: I425ab0c46fbe2b00ed679c5becf9e8140395eb40
Signed-off-by: Arve HjÃ¸nnevÃ¥g <arve@android.com>
fs: f2fs: Initial import from https://kernel.googlesource.com

https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs

Change-Id: I4b13bba6d61bf706fe86802dbff3d25beab95f27
defconfig: Enable F2FS filesystem