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/libartbase/base/time_utils.cc b/libartbase/base/time_utils.cc
index 3c09d5a..89a1109 100644
--- a/libartbase/base/time_utils.cc
+++ b/libartbase/base/time_utils.cc
@@ -22,7 +22,7 @@
 
 #include "android-base/stringprintf.h"
 
-#include "base/logging.h"
+#include "logging.h"
 
 #if defined(__APPLE__)
 #include <sys/time.h>