build: switch over to file_contexts.bin only

Change all uses of the file_contexts file to use the
file_contexts.bin file instead.

Depends on
   I75a781100082c23536f70ce3603f7de42408b5ba
   I43806d564b83d57f05f5c36c8eba7b1ff4831b04
   Id560d093440a2aba99cef28c20133b35feebf950
   I15660f4b3e4c5cb8ae0ec1498c74d6fcbb9a0400

Change-Id: Iaf8c4b2e420f610425a07f48db7af32bda3f5b3a
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 9112108..f484c13 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -151,16 +151,16 @@
   # are doing repacking. Redirect those properties to the actual files in the
   # unzipped directory.
   if input_dir is not None:
-    # We carry a copy of file_contexts under META/. If not available, search
-    # BOOT/RAMDISK/. Note that sometimes we may need a different file_contexts
+    # We carry a copy of file_contexts.bin under META/. If not available,
+    # search BOOT/RAMDISK/. Note that sometimes we may need a different file
     # to build images than the one running on device, such as when enabling
     # system_root_image. In that case, we must have the one for image
     # generation copied to META/.
-    fc_config = os.path.join(input_dir, "META", "file_contexts")
+    fc_config = os.path.join(input_dir, "META", "file_contexts.bin")
     if d.get("system_root_image") == "true":
       assert os.path.exists(fc_config)
     if not os.path.exists(fc_config):
-      fc_config = os.path.join(input_dir, "BOOT", "RAMDISK", "file_contexts")
+      fc_config = os.path.join(input_dir, "BOOT", "RAMDISK", "file_contexts.bin")
       if not os.path.exists(fc_config):
         fc_config = None