Revert "fstools: update to latest git HEAD"

This reverts commit df326e9b2e.

The referenced commit does not exist in the upstream repository.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

package/system/fstools/Makefile

@@ -12,8 +12,8 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(LEDE_GIT)/project/fstools.git
-PKG_SOURCE_DATE:=2018-01-07
-PKG_SOURCE_VERSION:=2a9a6ea4ac221f913ea318d7ac17ff2c31bdf5c2
+PKG_SOURCE_DATE:=2018-01-02
+PKG_SOURCE_VERSION:=11efbf3b90f031ce634fc38cad07a4aef2985777
 PKG_MIRROR_HASH:=35f14ea0ed799d2eb972f4901116a0e447d4bc1e37fb0edb239c44b270aeae18
 CMAKE_INSTALL:=1