Add AndroidX Autofill module to update_prebuilts.py.

Bug: 147116534
Test: manual verification
Change-Id: Iad3a8852add6e2f0cd819bf24fa3d1d0d960cbce
diff --git a/update_prebuilts/update_prebuilts.py b/update_prebuilts/update_prebuilts.py
index fd5895c..c55cc01 100755
--- a/update_prebuilts/update_prebuilts.py
+++ b/update_prebuilts/update_prebuilts.py
@@ -199,6 +199,7 @@
     'androidx.wear:wear': {'name':'androidx.wear_wear', 'path':'androidx/wear/wear'},
     'androidx.webkit:webkit': {'name':'androidx.webkit_webkit', 'path':'androidx/webkit/webkit'},
     'androidx.biometric:biometric': {'name':'androidx.biometric_biometric', 'path':'androidx/biometric/biometric'},
+    'androidx.autofill:autofill': {'name':'androidx.autofill_autofill', 'path':'androidx/autofill/autofill'},
 
     # AndroidX for Multidex
     'androidx.multidex:multidex': {'name':'androidx-multidex_multidex', 'path':'androidx/multidex/multidex'},