Replace cutils/log.h and rationalize log/log.h and android/log.h

- cutils/log.h treat as deprecated and lead by example
- android/log.h to be used instead of log/log.h if possible
- add system includes that are assumed as side effects
- define LOG_TAG first

Test: compile
Bug: 31289077
Bug: 30465923
Change-Id: I8d99b24c333578c9b5aa9f2a01324bd0bba268dd
diff --git a/include/ui/Rect.h b/include/ui/Rect.h
index b0dccfd..e9859fe 100644
--- a/include/ui/Rect.h
+++ b/include/ui/Rect.h
@@ -20,9 +20,10 @@
 #include <utils/Flattenable.h>
 #include <utils/Log.h>
 #include <utils/TypeHelpers.h>
+#include <log/log.h>
+
 #include <ui/Point.h>
 
-#include <android/log.h>
 #include <android/rect.h>
 
 namespace android {