logd: ro.config.low_ram set buffer size to 64K

Bug: 25792367
Change-Id: Icae85a7de70b3a71f89b2bf8c80866649f727177
diff --git a/logd/LogUtils.h b/logd/LogUtils.h
index b591f28..fccba61 100644
--- a/logd/LogUtils.h
+++ b/logd/LogUtils.h
@@ -43,6 +43,9 @@
 bool clientHasLogCredentials(uid_t uid, gid_t gid, pid_t pid);
 bool clientHasLogCredentials(SocketClient *cli);
 
+// Furnished in main.cpp
+bool property_get_bool(const char *key, bool def);
+
 static inline bool worstUidEnabledForLogid(log_id_t id) {
     return (id == LOG_ID_MAIN) || (id == LOG_ID_SYSTEM) || (id == LOG_ID_RADIO);
 }