libcutils: add method to get klog level

Change-Id: I55e8311bae97703be26e57b415a8ab0a6d9b4361
diff --git a/include/cutils/klog.h b/include/cutils/klog.h
index 4bcdd09..3635e89 100644
--- a/include/cutils/klog.h
+++ b/include/cutils/klog.h
@@ -23,6 +23,7 @@
 __BEGIN_DECLS
 
 void klog_init(void);
+int  klog_get_level(void);
 void klog_set_level(int level);
 void klog_close(void);
 void klog_write(int level, const char *fmt, ...)