build: introduce per feed repository support

This changeset implements a new menuconfig option to generate separate
repositories for each enabled package feed instead of one monolithic one.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 42002

include/package-dumpinfo.mk

@@ -46,6 +46,7 @@ Type: $(if $(Package/$(1)/targets),$(Package/$(1)/targets),$(if $(PKG_TARGETS),$
 $(if $(KCONFIG),Kernel-Config: $(KCONFIG)
 )$(if $(BUILDONLY),Build-Only: $(BUILDONLY)
 )$(if $(HIDDEN),Hidden: $(HIDDEN)
+)$(if $(FEED),Feed: $(FEED)
 )Description: $(if $(Package/$(1)/description),$(Package/$(1)/description),$(TITLE))
 $(if $(URL),$(URL)
 )$(MAINTAINER)