biscotti: Enable FUSE.

Tremplin expects /dev/fuse to exist to pass along into the container.

Change-Id: Ia7a9b75972dc08586ab2c9448934de30c0a53f8c
diff --git a/arch/x86/configs/biscotti_defconfig b/arch/x86/configs/biscotti_defconfig
index 3316691..8e2c1fe 100644
--- a/arch/x86/configs/biscotti_defconfig
+++ b/arch/x86/configs/biscotti_defconfig
@@ -345,6 +345,7 @@
 CONFIG_BTRFS_FS=y
 CONFIG_BTRFS_FS_POSIX_ACL=y
 # CONFIG_DNOTIFY is not set
+CONFIG_FUSE_FS=y
 CONFIG_FSCACHE=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y