Fix mips build.

Change-Id: I49aa83e38e90ebd20793885de9420de96062aa37
diff --git a/media/libmediaplayerservice/MetadataRetrieverClient.cpp b/media/libmediaplayerservice/MetadataRetrieverClient.cpp
index 6ef4c1f..9a37302 100644
--- a/media/libmediaplayerservice/MetadataRetrieverClient.cpp
+++ b/media/libmediaplayerservice/MetadataRetrieverClient.cpp
@@ -141,7 +141,7 @@
         ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
         return BAD_VALUE;
     }
-    ALOGV("st_dev  = %llu", sb.st_dev);
+    ALOGV("st_dev  = %llu", static_cast<uint64_t>(sb.st_dev));
     ALOGV("st_mode = %u", sb.st_mode);
     ALOGV("st_uid  = %lu", static_cast<unsigned long>(sb.st_uid));
     ALOGV("st_gid  = %lu", static_cast<unsigned long>(sb.st_gid));