Add fastboot-info to updatepackage

Modifying img_from_target_files to also add fastboot-info to
updatepackage

Test: m updatepackage
Bug: 194686221
Change-Id: I2e08c4269f0d83417b9d7079633bc28796d1cdd6
diff --git a/tools/releasetools/img_from_target_files.py b/tools/releasetools/img_from_target_files.py
index f8bdd81..7c27ef7 100755
--- a/tools/releasetools/img_from_target_files.py
+++ b/tools/releasetools/img_from_target_files.py
@@ -118,6 +118,7 @@
 
   entries = [
       'OTA/android-info.txt:android-info.txt',
+      'META/fastboot-info.txt:fastboot-info.txt',
   ]
   with zipfile.ZipFile(input_file) as input_zip:
     namelist = input_zip.namelist()