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/libs/gui/GraphicBufferAlloc.cpp b/libs/gui/GraphicBufferAlloc.cpp
index 3b37e5b..a8f40e0 100644
--- a/libs/gui/GraphicBufferAlloc.cpp
+++ b/libs/gui/GraphicBufferAlloc.cpp
@@ -15,7 +15,7 @@
  ** limitations under the License.
  */
 
-#include <android/log.h>
+#include <log/log.h>
 
 #include <ui/GraphicBuffer.h>