grlib: Move source files

Update #3678.

bsps/shared/grlib/amba/ambapp_alloc.c

@@ -0,0 +1,25 @@
+/*
+ *  AMBA Plug & Play routines
+ *
+ *  COPYRIGHT (c) 2011
+ *  Aeroflex Gaisler
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <grlib/ambapp.h>
+
+int ambapp_alloc_dev(struct ambapp_dev *dev, void *owner)
+{
+  if (dev->owner)
+    return -1;
+  dev->owner = owner;
+  return 0;
+}
+
+void ambapp_free_dev(struct ambapp_dev *dev)
+{
+  dev->owner = 0;
+}