libostree: depend on host-bison

Fixes:
http://autobuild.buildroot.net/results/9179b65a5a90d53490d9e109c45341f1104406a3

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libostree/libostree.mk

@@ -10,7 +10,7 @@ LIBOSTREE_SITE = https://github.com/ostreedev/ostree/releases/download/v$(LIBOST
 
 LIBOSTREE_LICENSE = LGPL-2.0+
 LIBOSTREE_LICENSE_FILES = COPYING
-LIBOSTREE_DEPENDENCIES = e2fsprogs host-pkgconf libfuse libglib2 libgpgme xz
+LIBOSTREE_DEPENDENCIES = e2fsprogs host-bison host-pkgconf libfuse libglib2 libgpgme xz
 LIBOSTREE_INSTALL_STAGING = YES
 
 LIBOSTREE_CONF_OPTS += \