liblog: Replace log/log.h with android/log.h

Move all liblog related content into android/log.h, and make
log/log.h points to android/log.h.

Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I858e0ebe047b86f2a8530a99bc9c380d3d58edbb
diff --git a/liblog/logd_reader.c b/liblog/logd_reader.c
index d796ecd..563b5c7 100644
--- a/liblog/logd_reader.c
+++ b/liblog/logd_reader.c
@@ -31,8 +31,8 @@
 #include <time.h>
 #include <unistd.h>
 
+#include <android/log.h>
 #include <cutils/sockets.h>
-#include <log/log.h>
 #include <log/logger.h>
 #include <private/android_filesystem_config.h>
 #include <private/android_logger.h>