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/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 62caceb..f0c4ee0 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -25,10 +25,10 @@
 #include "base/bit_field.h"
 #include "base/bit_utils.h"
 #include "base/enums.h"
+#include "base/globals.h"
 #include "base/memory_region.h"
 #include "dex/string_reference.h"
 #include "dex/type_reference.h"
-#include "globals.h"
 #include "graph_visualizer.h"
 #include "locations.h"
 #include "nodes.h"