ubox: update to latest git HEAD

da5b8b4 log/syslog: Add missing static to two structs.
dd61c9f ubox: Replace { 0 } with {}.

Signed-off-by: John Crispin <john@phrozen.org>

package/system/ubox/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(LEDE_GIT)/project/ubox.git
-PKG_SOURCE_DATE:=2017-09-01
-PKG_SOURCE_VERSION:=b1bc8d5fb874cdd22701a08d0fb0de4330f86814
-PKG_MIRROR_HASH:=b07e750d941d691e2745aa3a058e504966b15d1db5636162dc686bad275eb296
+PKG_SOURCE_DATE:=2017-10-06
+PKG_SOURCE_VERSION:=da5b8b4049d35cab2f5484940d122017228598fd
+PKG_MIRROR_HASH:=b3feb557bcbe25d91a6a887e80df68aa2cb9124c6ff83051886ded86d27ab074
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0