[source] iproute2: add libgenl.h and ll_map.h to InstallDev section

[LEDE Commits]

jow pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/9b24d99b9175d187e881e1c3a47eaf6fe1f6fbfe

commit 9b24d99b9175d187e881e1c3a47eaf6fe1f6fbfe
Author: Hans Dedecker <dedeckeh at gmail.com>
AuthorDate: Sat Apr 8 20:40:56 2017 +0200

    iproute2: add libgenl.h and ll_map.h to InstallDev section
    
    Commit f4e312ddf855375667f43c842c7187934b8aca92 adds libnetlink to
    staging dir but did not add the header files libgenl.h and ll_map.h
    which define functions belonging to libnetlink lib
    
    Signed-off-by: Hans Dedecker <dedeckeh at gmail.com>
    (cherry picked from commit fc859fb44b4e7a38a1f1825b05b72b81e80f82a8)
---
 package/network/utils/iproute2/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/network/utils/iproute2/Makefile b/package/network/utils/iproute2/Makefile
index 1c1ee3f..0fa88b6 100644
--- a/package/network/utils/iproute2/Makefile
+++ b/package/network/utils/iproute2/Makefile
@@ -97,7 +97,7 @@ endef
 
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include
-	$(CP) $(PKG_BUILD_DIR)/include/libnetlink.h $(1)/usr/include/
+	$(CP) $(PKG_BUILD_DIR)/include/{libgenl,libnetlink,ll_map}.h $(1)/usr/include/
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_BUILD_DIR)/lib/libnetlink.a $(1)/usr/lib/
 endef