pciutils: ensure cross-pkgconfig is used

For build with libkmod.

Fixes http://autobuild.buildroot.net/results/70cdca5c5a41a14277c616fba3a58d8aa5fa5a2c/build-end.log

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

package/pciutils/pciutils.mk

@@ -40,7 +40,7 @@ define PCIUTILS_CONFIGURE_CMDS
 endef
 
 define PCIUTILS_BUILD_CMDS
-	$(MAKE) CC="$(TARGET_CC)" \
+	$(TARGET_MAKE_ENV) $(MAKE) CC="$(TARGET_CC)" \
 		HOST="$(KERNEL_ARCH)-linux" \
 		OPT="$(TARGET_CFLAGS)" \
 		LDFLAGS="$(TARGET_LDFLAGS)" \