mako: label boot block device

Bug: 19534538
Change-Id: I0e309e2de0c9b0f44dc99408c0bf77c25c3518ec
diff --git a/sepolicy/file_contexts b/sepolicy/file_contexts
index a44c8b1..dde0489 100644
--- a/sepolicy/file_contexts
+++ b/sepolicy/file_contexts
@@ -86,6 +86,7 @@
 /dev/block/platform/msm_sdcc\.1/by-name/userdata u:object_r:userdata_block_device:s0
 /dev/block/platform/msm_sdcc\.1/by-name/cache u:object_r:cache_block_device:s0
 /dev/block/platform/msm_sdcc\.1/by-name/metadata u:object_r:metadata_block_device:s0
+/dev/block/platform/msm_sdcc\.1/by-name/boot u:object_r:boot_block_device:s0
 
 /data/cam_socket[0-9]              u:object_r:camera_socket:s0
 /data/app/sensor_ctl_socket        u:object_r:sensors_socket:s0