[POWERPC] bootwrapper: Add a fatal error helper

Add a macro fatal that calls printf then exit.  User must include stdio.h.

Typically replaces 3 lines with 1, although I added back some whitespace.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/boot/ops.h

@@ -158,6 +158,8 @@ static inline void exit(void)
 		platform_ops.exit();
 	for(;;);
 }
+#define fatal(args...) { printf(args); exit(); }
+
 
 #define BSS_STACK(size) \
 	static char _bss_stack[size]; \