Add EtchDroid USB Writer

(will also need to remove old apk from device/generic/common/app)
diff --git a/update.sh b/update.sh
index ed9bb24..490c44b 100755
--- a/update.sh
+++ b/update.sh
@@ -95,6 +95,8 @@
 downloadFromFdroid org.microg.nlp.backend.nominatim
 # Midori Browser
 downloadFromFdroid org.midorinext.android
+# EtchDroid USB Writer
+downloadFromFdroid eu.depau.etchdroid
 
 #Web browser
 #~ downloadFromFdroid org.mozilla.fennec_fdroid "Browser2 QuickSearchBox"