shamu: label boot block device

Bug: 19534538
Change-Id: I871b756d9ff7454b4626c5556d53ed2467032d97
diff --git a/sepolicy/file_contexts b/sepolicy/file_contexts
index 93d3914..df061b0 100644
--- a/sepolicy/file_contexts
+++ b/sepolicy/file_contexts
@@ -50,6 +50,7 @@
 
 /dev/block/platform/msm_sdcc\.1/by-name/system       u:object_r:system_block_device:s0
 /dev/block/platform/msm_sdcc\.1/by-name/recovery     u:object_r:recovery_block_device:s0
+/dev/block/platform/msm_sdcc\.1/by-name/boot         u:object_r:boot_block_device:s0
 /dev/block/platform/msm_sdcc\.1/by-name/userdata     u:object_r:userdata_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/cache        u:object_r:cache_block_device:s0