fstools: update to git HEAD

 964d1e3 partname: allow skipping existing 'rootfs_data' partition

Signed-off-by: Daniel Golle <[email protected]>

package/system/fstools/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/fstools.git
-PKG_MIRROR_HASH:=5e55b446e3e171cd609d94fe00cf528fc5b784e9a4cb911730ba3ee9622e2e0b
-PKG_SOURCE_DATE:=2021-03-05
-PKG_SOURCE_VERSION:=3c38f0c889177dfac51fa7213c567a110709be71
+PKG_MIRROR_HASH:=c9a5647f69dd17ce9d7cd535c9e58055171f7f4af73d2985567ccfc18a2be97f
+PKG_SOURCE_DATE:=2021-03-19
+PKG_SOURCE_VERSION:=964d1e3af0e111bad6d393f8a3be702e334c2398
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0