complier.h: add __noreturn and use it in code base

Add a __noreturn macro that wraps __attribute__((noreturn)) and replace
current users with the macro.

Change-Id: Iddd0728cf79678c3d1c1f7e7946c27375a644a7d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/28505
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/include/console/console.h

@@ -19,6 +19,7 @@
 #include <stdint.h>
 #include <rules.h>
 #include <arch/cpu.h>
+#include <compiler.h>
 #include <console/post_codes.h>
 #include <commonlib/loglevel.h>
 
@@ -40,7 +41,7 @@ void post_log_clear(void);
 #endif
 /* this function is weak and can be overridden by a mainboard function. */
 void mainboard_post(u8 value);
-void __attribute__((noreturn)) die(const char *msg);
+void __noreturn die(const char *msg);
 
 /*
  * This function is weak and can be overridden to provide additional