Use the documented header filenames

Both Khronos and we say to use < > in our docs

Change-Id: Ibf1d2b83036582a605aa6b9043210c89a4eb0e1e
diff --git a/src/OpenSLES_IID.c b/src/OpenSLES_IID.c
index 7e4e49b..bbcf7dc 100644
--- a/src/OpenSLES_IID.c
+++ b/src/OpenSLES_IID.c
@@ -30,11 +30,11 @@
 /****************************************************************************/
 
 
-#include "SLES/OpenSLES.h"         /* SL Header */
-#include "OMXAL/OpenMAXAL.h"
+#include <SLES/OpenSLES.h>         /* SL Header */
+#include <OMXAL/OpenMAXAL.h>
 #ifdef ANDROID
-#include "SLES/OpenSLES_Android.h"  /* Android-specific SL Header */
-#include "OMXAL/OpenMAXAL_Android.h"/* Android-specific MAX AL Header */
+#include <SLES/OpenSLES_Android.h>  /* Android-specific SL Header */
+#include <OMXAL/OpenMAXAL_Android.h>/* Android-specific MAX AL Header */
 #endif
 #include "MPH.h"