liblog: Add kernel log id

Change-Id: I53002f05a8bdf8d67e1d761c56c8761d3b534a76
diff --git a/liblog/log_read.c b/liblog/log_read.c
index 5364e4f..9c4af30 100644
--- a/liblog/log_read.c
+++ b/liblog/log_read.c
@@ -208,6 +208,7 @@
     [LOG_ID_EVENTS] = "events",
     [LOG_ID_SYSTEM] = "system",
     [LOG_ID_CRASH] = "crash",
+    [LOG_ID_KERNEL] = "kernel",
 };
 
 const char *android_log_id_to_name(log_id_t log_id)