system/core Replace log/log.h with android/log.h

Should use android/log.h instead of log/log.h as a good example
to all others.  Adjust header order to comply with Android Coding
standards.

Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I33a8fb4e754d2dc4754d335660c450e0a67190fc
diff --git a/libbacktrace/BacktraceMap.cpp b/libbacktrace/BacktraceMap.cpp
index 00c35b1..19ea1e3 100644
--- a/libbacktrace/BacktraceMap.cpp
+++ b/libbacktrace/BacktraceMap.cpp
@@ -20,9 +20,9 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <android/log.h>
 #include <backtrace/backtrace_constants.h>
 #include <backtrace/BacktraceMap.h>
-#include <log/log.h>
 
 #include "thread_utils.h"