logd: add logd.auditd property

- permit us a mechanism to disable auditd
- standardize property boolean

Bug: 14275676
Change-Id: I76f245c6aee511ed44274159e0ea55915b484dda
diff --git a/logd/README.property b/logd/README.property
index 15a49db..5d92d09 100644
--- a/logd/README.property
+++ b/logd/README.property
@@ -1,11 +1,12 @@
 The properties that logd responds to are:
 
 name                       type default  description
+logd.auditd                 bool  true   Enable selinux audit daemon
 logd.auditd.dmesg           bool  true   selinux audit messages duplicated and
                                          sent on to dmesg log
-logd.dgram_qlen.statistics  bool  false  Record dgram_qlen statistics. This
+logd.statistics.dgram_qlen  bool  false  Record dgram_qlen statistics. This
                                          represents a performance impact and
                                          is used to determine the platform's
                                          minimum domain socket network FIFO
                                          size (see source for details) based
-                                         on typical load (logcat -S)
+                                         on typical load (logcat -S to view)