mac80211: copy the backport-include files to staging_dir

SVN-Revision: 36974

package/mac80211/Makefile

@@ -1349,9 +1349,11 @@ endef
 define Build/InstallDev
 	mkdir -p \
 		$(1)/usr/include/mac80211 \
+		$(1)/usr/include/mac80211-backport \
 		$(1)/usr/include/mac80211/ath \
 		$(1)/usr/include/net/mac80211
 	$(CP) $(PKG_BUILD_DIR)/net/mac80211/*.h $(PKG_BUILD_DIR)/include/* $(1)/usr/include/mac80211/
+	$(CP) $(PKG_BUILD_DIR)/backport-include/* $(1)/usr/include/mac80211-backport/
 	$(CP) $(PKG_BUILD_DIR)/net/mac80211/rate.h $(1)/usr/include/net/mac80211/
 	$(CP) $(PKG_BUILD_DIR)/drivers/net/wireless/ath/*.h $(1)/usr/include/mac80211/ath/
 endef