Use compat_sigval_t in struct compat_siginfo.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/signal32.c

@@ -78,7 +78,7 @@ typedef struct compat_siginfo {
 		struct {
 			timer_t _tid;		/* timer id */
 			int _overrun;		/* overrun count */
-			sigval_t32 _sigval;	/* same as below */
+			compat_sigval_t _sigval;/* same as below */
 			int _sys_private;       /* not to be passed to user */
 		} _timer;