Clean up include paths

Remove runtime/globals.h and make clients point to the right globals.h
(libartbase/base/globals.h).  Also make within-libartbase includes
relative rather than using base/, etc.

Bug: 22322814
Test: make -j 40 checkbuild
Change-Id: I99de63fc851d48946ab401e2369de944419041c7
diff --git a/runtime/base/file_utils.cc b/runtime/base/file_utils.cc
index 7b0796c..7921985 100644
--- a/runtime/base/file_utils.cc
+++ b/runtime/base/file_utils.cc
@@ -43,11 +43,11 @@
 #include "android-base/strings.h"
 
 #include "base/bit_utils.h"
-#include "base/stl_util.h"
+#include "base/globals.h"
 #include "base/os.h"
+#include "base/stl_util.h"
 #include "base/unix_file/fd_file.h"
 #include "dex/dex_file_loader.h"
-#include "globals.h"
 
 #if defined(__APPLE__)
 #include <crt_externs.h>