bsps/sparc: Add BSP_INITIAL_EXTENSION to <bsp.h>

The bsp_fatal_extension() will call BSP_fatal_return().

c/src/lib/libbsp/sparc/leon3/Makefile.am

@@ -30,6 +30,7 @@ libbsp_a_SOURCES =
 
 # startup
 libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsplibc.c \
+    ../shared/startup/bspfatalextension.c \
     ../../shared/bsppost.c ../../shared/bootcard.c startup/bspstart.c \
     ../../sparc/shared/bsppretaskinghook.c startup/bsppredriver.c \
     ../../sparc/shared/bspgetworkarea.c ../../shared/sbrk.c startup/setvec.c \

c/src/lib/libbsp/sparc/leon3/include/bsp.h

@@ -32,6 +32,8 @@ extern "C" {
 #include <rtems/console.h>
 #include <rtems/irq-extension.h>
 
+#include <bsp/default-initial-extension.h>
+
 /* SPARC CPU variant: LEON3 */
 #define LEON3 1