fstools: update to latest git HEAD

3d23981 strip trailing spaces from vfat labels
c4a3c97 fix vfat volume label
5010710 block: support /dev/nvme* nodes

Signed-off-by: John Crispin <john@phrozen.org>

package/system/fstools/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/fstools.git
-PKG_SOURCE_DATE:=2018-01-13
-PKG_SOURCE_VERSION:=18090d97b61cc091ed3f49c3ec8ba42c761f1d15
-PKG_MIRROR_HASH:=165c1b19778138910905528ead080413fb741c5dfc191da72979c00d49df6e0d
+PKG_SOURCE_DATE:=2018-02-11
+PKG_SOURCE_VERSION:=3d239815bb048041ec0d48cba273573d148ad7a9
+PKG_MIRROR_HASH:=28b7e9f6b8ba4ad3dcab44daa629df412af103bf31448177cffb0d176f0aacf1
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0