build: fix including busybox, procd and apk/opkg in imagebuilder

Since the image builder pulls package lists from metadata directly,
add procd and busybox as depdendencies to base-files.
As for the package manager itself, since it can be disabled it needs
to be added directly in the image builder makefile

Fixes: 44598c233d ("build: remove broken dependency of metadata on toplevel .config variables")
Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/system/procd/Makefile

@@ -50,7 +50,6 @@ define Package/procd
   $(call Package/procd/Default)
   VARIANT:=default
   CONFLICTS:=procd-selinux
-  DEFAULT:=y if !SELINUX
 endef
 
 define Package/procd-selinux
@@ -59,7 +58,6 @@ define Package/procd-selinux
   TITLE += with SELinux support
   PROVIDES:=procd
   VARIANT:=selinux
-  DEFAULT:=y if SELINUX
 endef
 
 define Package/procd-ujail
@@ -75,7 +73,6 @@ define Package/procd-seccomp
   CATEGORY:=Base system
   DEPENDS:=@SECCOMP +libubox +libblobmsg-json
   TITLE:=OpenWrt process seccomp helper + utrace
-  DEFAULT:=y if SECCOMP
 endef
 
 define Package/uxc