mtools: fix broken /usr/bin/lz

When build fs with mtools-3.9.9, has file /usr/bin/lz in rootfs,
it is the symlink to uz:

root@qemu3:~# /usr/bin/lz
-sh: /usr/bin/lz: No such file or directory
$root@qemu3:~# ls -l /usr/bin/lz
lrwxrwxrwx 1 root root 2 Jul 18 18:07 /usr/bin/lz -> uz
root@qemu3:~# uz
-sh: uz: command not found

But the uz isn't actually exist, so the result is that lz is a
broken symlink.

The root cause is that uz hasn't been installed when install-scripts.

(From OE-Core rev: 7308da9ccd4b8b9b5077aacd0442be28a6c73c61)

Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/mtools/mtools/fix-broken-lz.patch

@@ -0,0 +1,23 @@
+Upstream-Status: Backport
+
+Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
+Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
+---
+ Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.in b/Makefile.in
+index 8f9305a..694e837 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -251,6 +251,7 @@ install-scripts: ${DESTDIR}$(bindir)/mtools
+ 	@$(top_srcdir)/mkinstalldirs ${DESTDIR}$(bindir)
+ 	@for j in $(SCRIPTS) ; do \
+ 		$(INSTALL_SCRIPT) $(srcdir)/scripts/$$j ${DESTDIR}$(bindir)/$$j ; \
++		$(INSTALL_PROGRAM) $(srcdir)/scripts/$$j ${DESTDIR}$(bindir)/$$j ; \
+ 		echo ${DESTDIR}$(bindir)/$$j ; \
+ 	done
+ 	rm -f ${DESTDIR}$(bindir)/lz
+-- 
+2.0.0
+

meta/recipes-devtools/mtools/mtools_3.9.9.bb

@@ -31,7 +31,9 @@ RRECOMMENDS_${PN} = "\
 SRC_URI = "http://downloads.yoctoproject.org/mirror/sources/mtools-${PV}.tar.gz \
 	file://mtools-makeinfo.patch \
 	file://mtools.patch \
-	file://no-x11.patch"
+	file://no-x11.patch \
+	file://fix-broken-lz.patch \
+"
 
 SRC_URI[md5sum] = "3e68b857b4e1f3a6521d1dfefbd30a36"
 SRC_URI[sha256sum] = "af083a73425d664d4607ef6c6564fd9319a0e47ee7c105259a45356cb834690e"