releasetools: ota_from_target_files: add FullOTA_PostValidate

Change-Id: I152412049f90fd546d4516cc064238c3192be553

tools/releasetools/common.py

@@ -3171,6 +3171,11 @@ class DeviceSpecificParams(object):
     used to install the image for the device's baseband processor."""
     return self._DoCall("FullOTA_InstallEnd")
 
+  def FullOTA_PostValidate(self):
+    """Called after installing and validating /system; typically this is
+    used to resize the system partition after a block based installation."""
+    return self._DoCall("FullOTA_PostValidate")
+
   def IncrementalOTA_Assertions(self):
     """Called after emitting the block of assertions at the top of an
     incremental OTA package.  Implementations can add whatever

tools/releasetools/non_ab_ota.py

@@ -236,6 +236,8 @@ else if get_stage("%(bcb_dev)s") == "3/3" then
   common.CheckSize(boot_img.data, "boot.img", target_info)
   common.ZipWriteStr(output_zip, "boot.img", boot_img.data)
 
+  device_specific.FullOTA_PostValidate()
+
   script.WriteRawImage("/boot", "boot.img")
 
   script.ShowProgress(0.1, 10)