[source] fstools: update to the latest version, adds support for ext4/f2fs overlay via loopback device

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/1867537d65dd412485da28837049460ccd479791

commit 1867537d65dd412485da28837049460ccd479791
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Sep 8 13:41:44 2016 +0200

    fstools: update to the latest version, adds support for ext4/f2fs overlay via loopback device
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/system/fstools/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/system/fstools/Makefile b/package/system/fstools/Makefile
index 409f99b..1254510 100644
--- a/package/system/fstools/Makefile
+++ b/package/system/fstools/Makefile
@@ -8,14 +8,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fstools
-PKG_VERSION:=2016-09-05
+PKG_VERSION:=2016-09-08
 
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(LEDE_GIT)/project/fstools.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=f9ad6bacd7efa578369427e7e75f0177bd3cf290
+PKG_SOURCE_VERSION:=fe514c9a20365ba00232c2c981463f43a4a41a7d
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 CMAKE_INSTALL:=1