util-linux: misc fixes

- We patch configure.ac, so we need to autoreconf
- configure uses pkg-config, so ensure the cross version is used.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/util-linux/util-linux.mk

@@ -7,6 +7,8 @@ UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).1
 UTIL_LINUX_VERSION_MAJOR = 2.19
 UTIL_LINUX_SOURCE = util-linux-$(UTIL_LINUX_VERSION).tar.bz2
 UTIL_LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/util-linux/v$(UTIL_LINUX_VERSION_MAJOR)
+UTIL_LINUX_AUTORECONF = YES
+UTIL_LINUX_DEPENDENCIES = host-pkg-config
 
 UTIL_LINUX_CONF_OPT += --disable-rpath --disable-makeinstall-chown