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/utils/assembler.cc b/compiler/utils/assembler.cc
index 421c1b6..d1d2a3d 100644
--- a/compiler/utils/assembler.cc
+++ b/compiler/utils/assembler.cc
@@ -20,8 +20,8 @@
 #include <vector>
 
 #include "base/casts.h"
+#include "base/globals.h"
 #include "base/memory_region.h"
-#include "globals.h"
 
 namespace art {