util-inux: MKINSTALLDIRS workaround is needed for host install as well

Fixes http://autobuild.buildroot.net/results/3c8/3c8c78a5c0421b9079190ddf97b366fc7f0c0859

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/util-linux/util-linux.mk

@@ -105,3 +105,4 @@ $(eval $(host-autotools-package))
 # one, so it disappears
 UTIL_LINUX_INSTALL_STAGING_OPT += MKINSTALLDIRS=$(@D)/config/mkinstalldirs
 UTIL_LINUX_INSTALL_TARGET_OPT += MKINSTALLDIRS=$(@D)/config/mkinstalldirs
+HOST_UTIL_LINUX_INSTALL_OPT += MKINSTALLDIRS=$(@D)/config/mkinstalldirs