ubox: move getrandom into separate getrandom package

So it's possible to install or remove it as needed.

Tested-by: Lucian Cristian <lucian.cristian@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit 9b4de712cae9b3d745ea4331a804242505f58619)

package/system/ubox/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ubox
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/ubox.git
@@ -27,18 +27,28 @@ define Package/ubox
   TITLE:=OpenWrt system helper toolbox
 endef
 
+define Package/getrandom
+  SECTION:=base
+  CATEGORY:=Base system
+  TITLE:=OpenWrt getrandom system helper
+endef
+
 define Package/logd
-SECTION:=base
+  SECTION:=base
   CATEGORY:=Base system
   DEPENDS:=+libubox +libubus +libblobmsg-json +USE_GLIBC:librt
   TITLE:=OpenWrt system log implementation
 endef
 
+define Package/getrandom/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/getrandom $(1)/usr/bin/
+endef
+
 define Package/ubox/install
 	$(INSTALL_DIR) $(1)/sbin $(1)/usr/sbin $(1)/lib $(1)/usr/bin
 
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/{kmodloader,validate_data} $(1)/sbin/
-	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/getrandom $(1)/usr/bin/
 	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libvalidate.so $(1)/lib
 
 	$(LN) kmodloader $(1)/sbin/rmmod
@@ -56,4 +66,5 @@ define Package/logd/install
 endef
 
 $(eval $(call BuildPackage,ubox))
+$(eval $(call BuildPackage,getrandom))
 $(eval $(call BuildPackage,logd))