conntrack-tools: add a build dependency on librpc (fixes #19342)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45099 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/network/utils/conntrack-tools/Makefile

@@ -26,6 +26,8 @@ PKG_INSTALL:=1
 
 TAR_OPTIONS += --exclude='*.rej'
 
+PKG_BUILD_DEPENDS:=librpc
+
 include $(INCLUDE_DIR)/package.mk
 
 define Package/conntrack-tools