defconfig: disable exfat

* fuse is used anyway, this is useless

Change-Id: I12c639ff59b141e59bb23c40a6ef04b0518568a8
exfat: don't turn on by default

Change-Id: I6f5d92649896df6736ef85a6b193f99f97a9b242
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_kernel_samsung_jf into kk_mkt