Allow addition of recovery DTBO to recovery image

Non-A/B devices need to include the DTBO image
within the recovery partition to be self-sufficient
and prevent OTA failures.

Test: Ran 'm dist' and verified that the DTBO image
was included in recovery.img using unpack_bootimg.
Also ran 'make' and verified that the DTBO image was
included in recovery.img using unpack_bootimg.

Bug: 74763691

Change-Id: I38c9c395c95d21f4da42cfa646063bd4416f6bd8
Merged-In: I38c9c395c95d21f4da42cfa646063bd4416f6bd8
(cherry picked from commit e74a38bc6d)

tools/releasetools/common.py

@@ -460,6 +460,11 @@ def _BuildBootableImage(sourcedir, fs_config_file, info_dict=None,
   # "boot" or "recovery", without extension.
   partition_name = os.path.basename(sourcedir).lower()
 
+  if (partition_name == "recovery" and
+      info_dict.get("include_recovery_dtbo") == "true"):
+    fn = os.path.join(sourcedir, "recovery_dtbo")
+    cmd.extend(["--recovery_dtbo", fn])
+
   p = Run(cmd, stdout=subprocess.PIPE)
   p.communicate()
   assert p.returncode == 0, "mkbootimg of %s image failed" % (partition_name,)