linux-leviathan: changed ext2 support from m to y and removed extended attributes...

linux-leviathan: changed ext2 support from m to y and removed extended attributes in ext2/3

Without that we can't mount ext2 filesystem at boot
Thanks Lukas D. Gorris (aka dcordes) for pointing it out in irc(#openmoko-cdevel),
While trying to help me use his initrd that is capable of booting from an ext2
loop filesystem on a vfat partition
(so a Microsoft Windows user could boot our work with fastboot, for the htcdream) :
  <dcordes> ok I found the problem
  <dcordes> CONFIG_EXT2_FS=m
  <GNUtoo|laptop> ahh
  <dcordes> CONFIG_EXT2_FS=y
  <GNUtoo|laptop> thanks a lot
  <dcordes> tada

PR was bumped too

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>