Check for vintf compatiblity early in generation process

Currently CheckVintfIfTrebleEnabled is called after generating payload.
Users have to wait for ~1 hour before vintf is checked. Do the check
early and fail early.

Test: th
Change-Id: I2e4a8c7eaa62c94c92973c127b1d825a26e63b35

tools/releasetools/ota_from_target_files.py

@@ -1097,6 +1097,8 @@ def GenerateAbOtaPackage(target_file, output_file, source_file=None):
     target_info.info_dict['ab_partitions'] = zfp.read(
         AB_PARTITIONS).decode().strip().split("\n")
 
+  CheckVintfIfTrebleEnabled(target_file, target_info)
+
   # Metadata to comply with Android OTA package format.
   metadata = GetPackageMetadata(target_info, source_info)
   # Generate payload.
@@ -1181,8 +1183,6 @@ def GenerateAbOtaPackage(target_file, output_file, source_file=None):
 
   common.ZipClose(target_zip)
 
-  CheckVintfIfTrebleEnabled(target_file, target_info)
-
   # We haven't written the metadata entry yet, which will be handled in
   # FinalizeMetadata().
   common.ZipClose(output_zip)