Add Novatel Gobi 3000 E396U modem to ModemManager blacklist.

BUG=chrome-os-partner:17083
TEST=Verify that ModemManager does not handle a E396U modem.

Change-Id: I68c8ebe671072ccafc362ec3d7aa80f729970cc2
Reviewed-on: https://gerrit.chromium.org/gerrit/40408
Commit-Queue: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>
diff --git a/77-cromo-gobi-device-blacklist.rules b/77-cromo-gobi-device-blacklist.rules
index 32e82f3..b27c8d4 100644
--- a/77-cromo-gobi-device-blacklist.rules
+++ b/77-cromo-gobi-device-blacklist.rules
@@ -207,9 +207,12 @@
 # Sony Gobi 3000 Modem device
 ATTRS{idVendor}=="12D1", ATTRS{idProduct}=="14F1", ENV{ID_MM_DEVICE_IGNORE}="1"
 
-# Novatel Gobi 3000 Modem device
+# Novatel Gobi 3000 (E396) Modem device
 ATTRS{idVendor}=="1410", ATTRS{idProduct}=="a021", ENV{ID_MM_DEVICE_IGNORE}="1"
 
+# Novatel Gobi 3000 (E396U) Modem device
+ATTRS{idVendor}=="1410", ATTRS{idProduct}=="a023", ENV{ID_MM_DEVICE_IGNORE}="1"
+
 # Dell Gobi 3000 Modem device
 ATTRS{idVendor}=="413c", ATTRS{idProduct}=="8194", ENV{ID_MM_DEVICE_IGNORE}="1"