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

Signed-off-by: Felix Fietkau <nbd@nbd.name>

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