Switch to LocalGSMBackends fork, original unmaintained

conf/resdl-download.txt

@@ -11,7 +11,7 @@ stuff_download="
   /system/app/AuroraDroid/AuroraDroid.apk							gitlab	AuroraOSS/auroradroid							.apk
   /system/app/AuroraStore/AuroraStore.apk							gitlab	AuroraOSS/AuroraStore							.apk
   /system/app/DejaVuNLPBackend/DejaVuNLPBackend.apk					repo	fdroid/org.fitchfamily.android.dejavu
-  /system/app/LocalGSMNLPBackend/LocalGSMNLPBackend.apk				repo	fdroid/org.fitchfamily.android.gsmlocation
+  /system/app/LocalGSMNLPBackend/LocalGSMNLPBackend.apk				github	ploink/Local-GSM-Backend						.apk
   /system/app/LocalWiFiNLPBackend/LocalWiFiNLPBackend.apk			repo	fdroid/org.fitchfamily.android.wifi_backend
   /system/app/MicroGGSFProxy/MicroGGSFProxy.apk						repo	microg/com.google.android.gsf
   /system/app/MozillaUnifiedNLPBackend/MozillaUnifiedNLPBackend.apk	repo	fdroid/org.microg.nlp.backend.ichnaea