sptests - Eliminate missing prototype warnings

testsuites/sptests/sp32/init.c

@@ -1,5 +1,5 @@
 /*
- *  COPYRIGHT (c) 1989-2011.
+ *  COPYRIGHT (c) 1989-2012.
  *  On-Line Applications Research Corporation (OAR).
  *
  *  The license and distribution terms for this file may be
@@ -13,6 +13,9 @@
 
 #include <tmacros.h>  /* includes bsp.h, stdio, etc... */
 
+/* forward declarations to avoid warnings */
+rtems_task Init(rtems_task_argument argument);
+
 rtems_task Init(
     rtems_task_argument ignored
 ) {