[source] ubox: update to latest git HEAD

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=c5a27139297e1e7d6b6f292fb27fe9b433755a20

commit c5a27139297e1e7d6b6f292fb27fe9b433755a20
Author: John Crispin <john at phrozen.org>
AuthorDate: Fri Jul 1 15:20:20 2016 +0200

    ubox: update to latest git HEAD
    
    Signed-off-by: John Crispin <john at phrozen.org>
---
 package/system/ubox/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/system/ubox/Makefile b/package/system/ubox/Makefile
index 1ebcdce..9be3a16 100644
--- a/package/system/ubox/Makefile
+++ b/package/system/ubox/Makefile
@@ -1,13 +1,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ubox
-PKG_VERSION:=2016-06-09
+PKG_VERSION:=2016-07-02
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(LEDE_GIT)/project/ubox.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=fdda69207d1509e0383e3da549f71666b194c40a
+PKG_SOURCE_VERSION:=81c38e8cc3913afcdf5c6916db0376000086b57f
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 CMAKE_INSTALL:=1