Change #include pathnames in public headers

Change
  #include "./aom_integer.h"
to
  #include "aom/aom_integer.h"

Change-Id: Ia80a66b8fa2506d78b9a3e8045588b672a0091e9

aom/aom_ext_ratectrl.h

diff --git a/aom/aom_ext_ratectrl.h b/aom/aom_ext_ratectrl.h
index 88598a3..46c8f20 100644
--- a/aom/aom_ext_ratectrl.h
+++ b/aom/aom_ext_ratectrl.h
@@ -20,8 +20,8 @@
 extern "C" {
 #endif
 
-#include "./aom_integer.h"
-#include "./aom_tpl.h"
+#include "aom/aom_integer.h"
+#include "aom/aom_tpl.h"
 
 /*!\brief Current ABI version number
  *

aom/aom_tpl.h

diff --git a/aom/aom_tpl.h b/aom/aom_tpl.h
index 60d879e..5615b2f 100644
--- a/aom/aom_tpl.h
+++ b/aom/aom_tpl.h
@@ -12,7 +12,7 @@
 #ifndef AOM_AOM_AOM_TPL_H_
 #define AOM_AOM_AOM_TPL_H_
 
-#include "./aom_integer.h"
+#include "aom/aom_integer.h"
 
 #ifdef __cplusplus
 extern "C" {