libtool: avoid to patch ltmain.sh script in host-libtool package

Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libtool/libtool.mk

@@ -16,6 +16,8 @@ endef
 
 HOST_LIBTOOL_POST_INSTALL_HOOKS += HOST_LIBTOOL_CUSTOM_INSTALL
 
+HOST_LIBTOOL_LIBTOOL_PATCH = NO
+
 $(eval $(call AUTOTARGETS,package,libtool))
 $(eval $(call AUTOTARGETS,package,libtool,host))