runc: add missing dependency on host-pkgconf

runc uses pkg-config to detect libseccomp, so we need to depend on it.

Fixes:

  http://autobuild.buildroot.net/results/72f1cf194843b8519a3ebf213cdbf06873809055/

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

package/runc/runc.mk

@@ -25,7 +25,7 @@ RUNC_GOTAGS = cgo static_build
 
 ifeq ($(BR2_PACKAGE_LIBSECCOMP),y)
 RUNC_GOTAGS += seccomp
-RUNC_DEPENDENCIES += libseccomp
+RUNC_DEPENDENCIES += libseccomp host-pkgconf
 endif
 
 define RUNC_CONFIGURE_CMDS