fanotify: allow fanotify to be built

We disabled the ability to build fanotify in commit 7c5347733dcc4ba0ba.
This reverts that commit and allows people to build fanotify.

Signed-off-by: Eric Paris <eparis@redhat.com>

fs/notify/Kconfig

@@ -3,4 +3,4 @@ config FSNOTIFY
 
 source "fs/notify/dnotify/Kconfig"
 source "fs/notify/inotify/Kconfig"
-#source "fs/notify/fanotify/Kconfig"
+source "fs/notify/fanotify/Kconfig"

include/linux/Kbuild

@@ -118,6 +118,7 @@ header-y += eventpoll.h
 header-y += ext2_fs.h
 header-y += fadvise.h
 header-y += falloc.h
+header-y += fanotify.h
 header-y += fb.h
 header-y += fcntl.h
 header-y += fd.h