Set droid's gid 1000

Bug: 363235770
Test: build
Change-Id: I6089a5b4a1d61087a0bae63291f49e933fc271f5
diff --git a/build/debian/fai_config/scripts/AVF/20-useradd b/build/debian/fai_config/scripts/AVF/20-useradd
index 9fbcd43..b5887c5 100755
--- a/build/debian/fai_config/scripts/AVF/20-useradd
+++ b/build/debian/fai_config/scripts/AVF/20-useradd
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-$ROOTCMD useradd -m -u 1000 -N -G sudo droid
+$ROOTCMD useradd -m -u 1000 -g 1000 -N -G sudo droid
 $ROOTCMD echo 'droid ALL=(ALL) NOPASSWD:ALL' >> $target/etc/sudoers
\ No newline at end of file