ugps: nmea: fix time comparision

Fix bug causing system time to be set over and over again, and causing
massive log pollution.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/utils/ugps/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ugps
-PKG_RELEASE:=3
+PKG_RELEASE:=1
 
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/ugps.git
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_DATE:=2019-06-25
-PKG_SOURCE_VERSION:=cd7eabcd8c9d17dab3946002127a82ad2f9e68c2
-PKG_MIRROR_HASH:=04a5bfa3a67f94d823911751ba4f0dbfd99a2264b393e1e81fdf0641b873d579
+PKG_SOURCE_DATE:=2020-04-29
+PKG_SOURCE_VERSION:=db40e3a22599641be68c88ece287d3fbbacd8a45
+PKG_MIRROR_HASH:=0ad8b1265ef3de880f0d7623bcf504e7976df8ee06d64e92f896f2e2a6030c39
 
 PKG_MAINTAINER:=John Crispin <john@phrozen.org>
 PKG_LICENSE:=GPL-2.0+