build: allow packages to declare ABI versions to detect necessary package rebuilds

If a package directly depends on another package that recently changed
its ABI version, it will be cleaned up and rebuilt (assuming quilt is
not used).

This helps with packages that have no stable ABI, e.g. libubox, ubus,
etc.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39720 3c298f89-4303-0410-b956-a3cf2f4a3e73
libubox: declare main version as ABI version

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39721 3c298f89-4303-0410-b956-a3cf2f4a3e73
ubus: declare main version as ABI version for libubus

Reorder BuildPackage calls, as libubox needs to come first for ABI
version handling to work

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39722 3c298f89-4303-0410-b956-a3cf2f4a3e73
netifd: depend on libubox directly to rebuild on ABI changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39723 3c298f89-4303-0410-b956-a3cf2f4a3e73
procd: depend on libubox directly to rebuild on ABI changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39724 3c298f89-4303-0410-b956-a3cf2f4a3e73
libubox: update to latest version, improves uloop error handling

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39725 3c298f89-4303-0410-b956-a3cf2f4a3e73
ubus: update to latest version, fixes lua binding issues and adds fd passing support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39726 3c298f89-4303-0410-b956-a3cf2f4a3e73